City
Byzantium / Constantinople
Byzantium was founded around 657 BCE as a colony of Megara on the European shore of the Bosporus, the narrow strait commanding the passage between the Aegean and the Black Sea and the grain route that fed the Greek world. Herodotus preserves the gibe that its mother-city had founded Chalcedon on the inferior Asian shore seventeen years earlier and so must have been “a city of the blind,” not to have seen the matchless site across the water. For a thousand years it was a prosperous but second-rank Greek city, until in 330 CE the emperor Constantine refounded it as his new Christian capital and renamed it after himself.
This is the city of three names, each marking a turn of history. As the Greek colony it was Byzántion, after its legendary founder Byzas; as Constantine’s capital it became Kōnstantinoúpolis, the “city of Constantine,” officially Néa Rhōmē, the New Rome, the seat of emperors and patriarchs for eleven centuries and the form the Arabs took as al-Qusṭanṭīniyya and the Syriac church as Qusṭanṭīnupolis. And beneath the imperial name the Greeks simply called it hē Pólis, “the City,” so that to go there was to go eis tḕn pólin, a phrase that hardened, after the Ottoman conquest, into Istanbul. The same place is a Greek colony, a Christian empire, and a Turkish metropolis, and it changed its name at each threshold; the English habit of calling the medieval empire “Byzantine,” after the name the city had shed a thousand years before, only adds a fourth layer to the confusion.
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Transmission map
Each form at the homeland of its language; arcs follow asserted borrowing paths. Slide to a year to see which names were in use.
in use at this year · formerly in use · not yet attested
◆ Byzantium, the city
Name families
Names that share one root, grouped into trees. A solid line joins a form to the form it was borrowed from; forms hanging together from a dashed rail are parallel descendants of the shared root, with no borrowing asserted between them. A dashed card is the off-page source of a chain: it lives on another entity's page, and links there.
The Constantinople family
The name Constantine gave the city he refounded in 330 CE, Greek Kōnstantinoúpolis, "the city of Constantine" (and Néa Rhōmē, "New Rome"), carried into Latin Constantinopolis, Arabic al-Qusṭanṭīniyya, and Syriac Qusṭanṭīnupolis; the colloquial "to the City," eis tēn pólin, would later become Istanbul.
The Byzántion family
The original name of the city on the Bosphorus, Greek Byzántion after its Megarian founder Byzas and Latin Byzantium; the name of the Greek colony of 657 BCE, before Constantine refounded it as Constantinople.
Attestation timeline
When each name is attested, earliest first. Dates bound the name's use, not the language's lifespan.
Names across languages
How to read these letters
- š sounds like sh; č like ch in church; ǰ like j
- ḫ and x sound like ch in Bach; γ is that sound voiced, a gargled g
- ṣ, ṭ, q are emphatic s, t, k, pronounced deeper in the throat; ḥ is a strong breathy h
- ʾ is a catch in the throat, like the middle of “uh-oh”; ʿ is the same made deeper and voiced
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- An asterisk (*) before a form means scholars reconstructed it; it is not found written out
Ancient Greek c. 657 BCE – 330 CE #
Βυζάντιον ByzántionΒυζάντιον
- Transliteration
- Byzántion
- IPA
- /byˈzan.ti.on/
- Meaning
- “Byzantium (the city of Byzas)”
- Confidence
- attested
The original Greek name of the city, Byzántion, the Megarian colony planted around 657 BCE on the point where the Bosphorus opens toward the Sea of Marmara. The name is taken from its legendary founder Byzas, in the regular Greek way of naming a colony for its oikist, and it names a modest but strategically golden city, the gatekeeper of the strait and the Black Sea grain trade, for the thousand years before Constantine.
Byzántion is the first of the city’s names and the one that, by a historical irony, the modern world reattached to its last great age. The Greek colony’s name was officially retired in 330 CE when Constantine renamed the city for himself; yet Western scholars, centuries later, coined “Byzantine” from this very Byzántion to label the Christian Greek empire ruled from Constantinople, an empire whose own people called themselves Romans and their city the New Rome. The name the city bore as a small Greek port thus became, long after it had been dropped, the adjective for the medieval superpower that the city had grown into under an entirely different name.
Sources (2)
- Herodotus, Histories 4.144 (the Megarian foundation and the "city of the blind"); Strabo, Geography 7.6.2.
- Liddell, Henry George, and Robert Scott. A Greek-English Lexicon (LSJ). 9th ed. Oxford: Clarendon Press, 1940, s.v. Βυζάντιον.
Cite this entry
Rajagopal, Shriram. "Byzántion (Ancient Greek name for Byzantium / Constantinople)." Onomastikon: A Digital Atlas of Ancient Names. Last modified June 17, 2026. https://onomastikon.org/civilizations/byzantium#ancient-greek-byzantion.
@misc{onomastikon-byzantium-ancient-greek-byzantion, author = {Rajagopal, Shriram}, title = {Byzántion (Ancient Greek name for Byzantium / Constantinople)}, year = {2026}, howpublished = {\url{https://onomastikon.org/civilizations/byzantium#ancient-greek-byzantion}}, note = {Onomastikon: A Digital Atlas of Ancient Names} }Latin c. 150 BCE – 600 CE #
Byzantium ByzantiumByzantium
- Transliteration
- Byzantium
- IPA
- /byːˈzan.ti.um/
- Meaning
- “Byzantium”
- Derived from
- Ancient Greek Byzántion
- Confidence
- attested
The Latin name of the city, Byzantium, taken straight from the Greek, the form under which Rome knew the Greek city it absorbed: Tacitus recounts the embassy in which the Byzantines pleaded their loyal services to win tax relief, and Pliny sets the city at the mouth of the strait. The Latin keeps the Greek shape unchanged.
Byzantium is the form English has kept, but for a thing the Romans never meant by it. To Pliny and Tacitus it was simply the Greek port on the Bosphorus; it is modern usage that took Byzantium and made from it “the Byzantine Empire,” the name for the Greek-speaking Roman state that ruled from the same site under the name Constantinople. The Latin word for the old colony became, in the hands of later historians, the label for the empire of the new capital, so that the city’s earliest name and its imperial afterlife are joined only in a coinage neither the Greeks nor the Romans would have recognized.
Sources (2)
- Pliny the Elder, Naturalis Historia 4.46; Tacitus, Annals 12.62–63 (the colony's privileges).
- Lewis, Charlton T., and Charles Short. A Latin Dictionary. Oxford: Clarendon Press, 1879, s.v. Byzantium.
Cite this entry
Rajagopal, Shriram. "Byzantium (Latin name for Byzantium / Constantinople)." Onomastikon: A Digital Atlas of Ancient Names. Last modified June 17, 2026. https://onomastikon.org/civilizations/byzantium#latin-byzantium.
@misc{onomastikon-byzantium-latin-byzantium, author = {Rajagopal, Shriram}, title = {Byzantium (Latin name for Byzantium / Constantinople)}, year = {2026}, howpublished = {\url{https://onomastikon.org/civilizations/byzantium#latin-byzantium}}, note = {Onomastikon: A Digital Atlas of Ancient Names} }Ancient Greek c. 330 CE – 600 CE #
Κωνσταντινούπολις KōnstantinoúpolisΚωνσταντινούπολις
- Transliteration
- Kōnstantinoúpolis
- IPA
- /kɔːn.stan.tiˈnuː.po.lis/
- Meaning
- “the city of Constantine”
- Confidence
- attested
The Greek name Constantine gave the city when he refounded it as his capital and dedicated it on 11 May 330 CE: Kōnstantinoúpolis, “the city of Constantine,” built on his own name with -polis. Its official dedicatory title was Néa Rhōmē, the New Rome, and on that ground the council of 381 ranked its bishop second only to Rome’s; for eleven centuries it was the seat of the Roman emperors of the East and the greatest Christian city in the world.
Kōnstantinoúpolis is the imperial name, and it all but buried the old Byzántion. Yet the Greeks who lived there rarely used its towering full form in speech; the city was so preeminent that they called it simply hē Pólis, “the City,” and to travel there was to go eis tḕn pólin, “into the City.” That ordinary phrase, not the grand imperial compound, is what survived the empire: misheard and reanalyzed, eis tḕn pólin became the Ottoman Istanbul. The name of Constantine raised the greatest city of the Middle Ages, but it was the offhand Greek for “the City” that outlived it.
Sources (2)
- Socrates Scholasticus, Historia Ecclesiastica; the Second Ecumenical Council (Constantinople, 381), canon 3 ("because it is New Rome").
- Lexikon zur byzantinischen Gräzität; LSJ, s.v. Κωνσταντινούπολις.
Cite this entry
Rajagopal, Shriram. "Kōnstantinoúpolis (Ancient Greek name for Byzantium / Constantinople)." Onomastikon: A Digital Atlas of Ancient Names. Last modified June 17, 2026. https://onomastikon.org/civilizations/byzantium#ancient-greek-konstantinoupolis.
@misc{onomastikon-byzantium-ancient-greek-konstantinoupolis, author = {Rajagopal, Shriram}, title = {Kōnstantinoúpolis (Ancient Greek name for Byzantium / Constantinople)}, year = {2026}, howpublished = {\url{https://onomastikon.org/civilizations/byzantium#ancient-greek-konstantinoupolis}}, note = {Onomastikon: A Digital Atlas of Ancient Names} }Latin c. 330 CE – 600 CE #
Constantinopolis ConstantinopolisConstantinopolis
- Transliteration
- Constantinopolis
- IPA
- /kon.stan.tiˈno.po.lis/
- Meaning
- “Constantinople; New Rome”
- Derived from
- Ancient Greek Kōnstantinoúpolis
- Confidence
- attested
The Latin name of the city, Constantinopolis, the form in which the western and official Roman world named Constantine’s foundation, beside the calque Nova Roma, “New Rome.” Latin administrative and legal texts, the regionary catalogue of the city’s quarters and the imperial law codes, use Constantinopolis for the eastern capital that had become the empire’s center of gravity.
Constantinopolis carries the Greek name into Latin and through it into the languages of the West, which kept “Constantinople” for the city until the twentieth century. It preserves the claim built into the Greek, that this was Nova Roma: a second Rome on the Bosphorus, equal in rank and, in time, far greater in wealth and endurance than the old. The name is a political assertion as much as a label, and Latin repeated it faithfully, naming the eastern city as the renewal of the western one whose empire it would outlast by a thousand years.
Sources (1)
- Notitia Urbis Constantinopolitanae; Codex Theodosianus; Ammianus Marcellinus, Res Gestae.
Cite this entry
Rajagopal, Shriram. "Constantinopolis (Latin name for Byzantium / Constantinople)." Onomastikon: A Digital Atlas of Ancient Names. Last modified June 17, 2026. https://onomastikon.org/civilizations/byzantium#latin-constantinopolis.
@misc{onomastikon-byzantium-latin-constantinopolis, author = {Rajagopal, Shriram}, title = {Constantinopolis (Latin name for Byzantium / Constantinople)}, year = {2026}, howpublished = {\url{https://onomastikon.org/civilizations/byzantium#latin-constantinopolis}}, note = {Onomastikon: A Digital Atlas of Ancient Names} }Syriac c. 350 CE – 700 CE #
ܩܘܣܛܢܛܝܢܘܦܘܠܝܣ Qusṭanṭīnupolisܩܘܣܛܢܛܝܢܘܦܘܠܝܣ
- Transliteration
- Qusṭanṭīnupolis
- IPA
- /qus.tˤan.tˤiːnuˈpo.lis/
- Meaning
- “Constantinople”
- Derived from
- Ancient Greek Kōnstantinoúpolis
- Confidence
- attested
The Syriac name of the city, Qusṭanṭīnupolis, a transparent transcription of the Greek Kōnstantinoúpolis carried straight into the Syriac of the eastern churches, who named the imperial capital constantly in their chronicles and synods. It was the seat of the emperor and of the councils, Ephesus, Chalcedon, and the rest, whose rulings split the Syriac-speaking churches from the imperial one, so that Constantinople figures in Syriac writing as both the great Christian city and the source of the doctrines the eastern churches rejected.
Qusṭanṭīnupolis shows the same eastern q for the Greek k as the Arabic al-Qusṭanṭīniyya, the mark of the Aramaic route. Its exact spelling varies from manuscript to manuscript, as transcriptions of long foreign names in Syriac often do, sometimes clipped or respelled; the form given here is the full transcription of the Greek. Through the Syriac chronicles the name of Constantine’s city passed into the historical memory of a Christian world that lay outside his empire and often against it, named in the language of the churches that the New Rome had condemned.
Sources (2)
- Syriac church historiography: the Chronicle of Zuqnin (Pseudo-Dionysius of Tel-Maḥrē); Michael the Syrian, Chronicle; the Chronicle of Edessa.
- Payne Smith, R. Thesaurus Syriacus. Oxford: Clarendon Press, 1879–1901.
Cite this entry
Rajagopal, Shriram. "Qusṭanṭīnupolis (Syriac name for Byzantium / Constantinople)." Onomastikon: A Digital Atlas of Ancient Names. Last modified June 17, 2026. https://onomastikon.org/civilizations/byzantium#syriac-qustantinupolis.
@misc{onomastikon-byzantium-syriac-qustantinupolis, author = {Rajagopal, Shriram}, title = {Qusṭanṭīnupolis (Syriac name for Byzantium / Constantinople)}, year = {2026}, howpublished = {\url{https://onomastikon.org/civilizations/byzantium#syriac-qustantinupolis}}, note = {Onomastikon: A Digital Atlas of Ancient Names} }Byzantine Greek c. 600 CE – 1453 CE #
ἡ Πόλις hē Pólisἡ Πόλις
- Transliteration
- hē Pólis
- IPA
- /i ˈpo.lis/
- Meaning
- “the City”
- Confidence
- attested
What the Byzantines actually called their capital, hē Pólis, “the City,” with no further specification: in a Greek world full of cities, the definite article alone was address enough. The usage runs through the whole medieval period in histories, saints’ lives, and everyday speech, beside the formal Kōnstantinoúpolis of documents and coins, and it survives in the cry that carried the news of 1453, heálō hē Pólis, “the City has fallen.” From the phrase eis tēn Pólin, “to the City,” on the roads and in the mouths of everyone who traveled there, Turkish usage eventually distilled Istanbul: the modern name of the metropolis is a fossilized Greek direction, the way to a city so singular it needed no name.
Every other form on this page is built from something, a founder’s name, an emperor’s name, a Greek compound; this one is built from nothing but a definite article, and it is the most Byzantine name of all. To say “the City” and mean only one place, from the Danube to the Euphrates, was to state the empire’s geography of prestige in two syllables: there were other poleis, but no other Pólis. Emperors fell, the formal name changed hands and languages, and the article held; Constantinople could be captured, but “the City” could only be the place it had always been. It is the one name here that is less a word than a gesture, an entire civilization pointing at its own center.
Sources (2)
- Kazhdan, Alexander, ed. The Oxford Dictionary of Byzantium. New York: Oxford University Press, 1991, s.v. "Constantinople."
- Georgacas, Demetrius J. "The Names of Constantinople." Transactions of the American Philological Association 78 (1947): 347–67.
Cite this entry
Rajagopal, Shriram. "hē Pólis (Byzantine Greek name for Byzantium / Constantinople)." Onomastikon: A Digital Atlas of Ancient Names. Last modified July 23, 2026. https://onomastikon.org/civilizations/byzantium#byzantine-greek-he-polis.
@misc{onomastikon-byzantium-byzantine-greek-he-polis, author = {Rajagopal, Shriram}, title = {hē Pólis (Byzantine Greek name for Byzantium / Constantinople)}, year = {2026}, howpublished = {\url{https://onomastikon.org/civilizations/byzantium#byzantine-greek-he-polis}}, note = {Onomastikon: A Digital Atlas of Ancient Names} }Medieval Latin c. 600 CE – 1453 CE #
Constantinopolis ConstantinopolisConstantinopolis
- Transliteration
- Constantinopolis
- IPA
- /kon.stan.tiˈno.po.lis/
- Meaning
- “the city of Constantine”
- Derived from
- Latin Constantinopolis
- Confidence
- attested
The medieval Latin continuation of Constantinopolis, the name the Latin entry above carries to 600. Through the Middle Ages the city’s Latin name never wavered, in papal letters, crusade chronicles, and merchant documents alike, and for fifty-seven years it was the name of the government itself: after the Fourth Crusade took the city in 1204, the crusader realm styled its ruler emperor of Constantinopolis, and a Latin patriarch of Constantinople sat in Hagia Sophia until the Greeks retook the city in 1261. The name held from there to the morning in 1453 when the last emperor died at the walls.
On a page where the city’s name migrates through Greek, Arabic, Syriac, and Ottoman Turkish shapes, the Latin thread runs eight and a half centuries without change, indifferent to whether the Latins were the city’s pilgrims, its conquerors, or its mourners; that constancy is its distinction. The other languages renamed the city as their relation to it changed, and the change of masters in 1453 promptly produced Kostantiniyye; Latin’s relation to the city changed as much as anyone’s, and its name never moved. It was in this fixed name that Latin Europe wrote down the news of 1453, the one stable coordinate from which the fall of everything else could be measured.
Sources (2)
- Partitio terrarum imperii Romanie (1204).
- Wolff, Robert Lee. "Romania: The Latin Empire of Constantinople." Speculum 23 (1948).
Cite this entry
Rajagopal, Shriram. "Constantinopolis (Medieval Latin name for Byzantium / Constantinople)." Onomastikon: A Digital Atlas of Ancient Names. Last modified July 22, 2026. https://onomastikon.org/civilizations/byzantium#medieval-latin-constantinopolis.
@misc{onomastikon-byzantium-medieval-latin-constantinopolis, author = {Rajagopal, Shriram}, title = {Constantinopolis (Medieval Latin name for Byzantium / Constantinople)}, year = {2026}, howpublished = {\url{https://onomastikon.org/civilizations/byzantium#medieval-latin-constantinopolis}}, note = {Onomastikon: A Digital Atlas of Ancient Names} }Classical Arabic c. 700 CE – 1453 CE #
القسطنطينية al-Qusṭanṭīniyyaالقسطنطينية
- Transliteration
- al-Qusṭanṭīniyya
- IPA
- /al.qus.tˤan.tˤiːˈnij.ja/
- Meaning
- “Constantinople (the Constantinian city)”
- Derived from
- Ancient Greek Kōnstantinoúpolis
- Confidence
- attested
The Arabic name of the city, al-Qusṭanṭīniyya, “the Constantinian,” taken from the Greek and worn into Arabic shape, the name of the great Christian capital that the early caliphate besieged and could not take, and whose eventual conquest a famous prophecy promised to a blessed commander and army. To the medieval Islamic world al-Qusṭanṭīniyya was the very image of the imperial city beyond the frontier.
The Arabic keeps the Greek k of Constantine as a qāf, the regular treatment of the sound in names received through the Aramaic-speaking Christian East, the same q that stands in the Syriac form. After the Ottoman conquest of 1453 the city’s colloquial Greek name, eis tḕn pólin, gradually displaced it as Isṭanbūl, though al-Qusṭanṭīniyya lingered in formal Ottoman use for centuries more. The name of Constantine thus reached its widest currency not in Christian Europe but in the Arabic and Turkish of the empire that finally made the city its own.
Sources (2)
- al-Ṭabarī, Taʾrīkh al-rusul wa-l-mulūk (the Arab sieges of the city).
- Yāqūt al-Ḥamawī, Muʿjam al-Buldān, s.v. القسطنطينية.
Cite this entry
Rajagopal, Shriram. "al-Qusṭanṭīniyya (Classical Arabic name for Byzantium / Constantinople)." Onomastikon: A Digital Atlas of Ancient Names. Last modified July 20, 2026. https://onomastikon.org/civilizations/byzantium#classical-arabic-qustantiniyya.
@misc{onomastikon-byzantium-classical-arabic-qustantiniyya, author = {Rajagopal, Shriram}, title = {al-Qusṭanṭīniyya (Classical Arabic name for Byzantium / Constantinople)}, year = {2026}, howpublished = {\url{https://onomastikon.org/civilizations/byzantium#classical-arabic-qustantiniyya}}, note = {Onomastikon: A Digital Atlas of Ancient Names} }Ottoman Turkish c. 1453 CE – 1922 CE #
قسطنطينيه Kostantiniyyeقسطنطينيه
- Transliteration
- Kostantiniyye
- IPA
- /kostantiˈnijje/
- Meaning
- “the city of Constantine”
- Derived from
- Classical Arabic al-Qusṭanṭīniyya
- Confidence
- attested
Kostantiniyye (قسطنطينيه) is the Ottoman Turkish name of Constantinople, the Arabic al-Qusṭanṭīniyya taken over with the spelling intact and the pronunciation turned Turkish. From the conquest of 1453 it served as the city’s formal name in the Ottoman state’s own usage, on documents and, for centuries, on the coinage, the mint-name of the imperial capital; it belongs to this atlas under the continuity clause, the early Ottoman continuation of a naming tradition the page has carried since Constantine. Beside it in speech ran the popular name that would eventually win, İstanbul, from the Greek eis tḕn pólin, “to the City,” whose story the page’s Greek entries tell; the two names shared the city for over four centuries until the republic retired the formal one in the twentieth.
The entry’s significance is who is using the name. Every earlier form in the constantinople family belongs to outsiders naming the Christian capital; this one belongs to the Muslim dynasty that took the city and then went on calling it Constantine’s for as long as the empire lasted, the founder’s name outliving the founder’s faith in the founder’s own city. Conquerors on this atlas usually rename or re-pronounce; the Ottomans did both at once and let the forms divide the labor, Constantine on the coins and the Greek street-phrase in the street. The emperor lost his city in 1453 and kept his name on it until 1922; few defeats have been so thoroughly survived.
Sources (2)
- The Encyclopaedia of Islam, Second Edition. Leiden: Brill, 1960–2004, s.v. "Istanbul."
- İslâm Ansiklopedisi (TDV), s.v. "İstanbul."
Cite this entry
Rajagopal, Shriram. "Kostantiniyye (Ottoman Turkish name for Byzantium / Constantinople)." Onomastikon: A Digital Atlas of Ancient Names. Last modified July 20, 2026. https://onomastikon.org/civilizations/byzantium#ottoman-turkish-kostantiniyye.
@misc{onomastikon-byzantium-ottoman-turkish-kostantiniyye, author = {Rajagopal, Shriram}, title = {Kostantiniyye (Ottoman Turkish name for Byzantium / Constantinople)}, year = {2026}, howpublished = {\url{https://onomastikon.org/civilizations/byzantium#ottoman-turkish-kostantiniyye}}, note = {Onomastikon: A Digital Atlas of Ancient Names} }Cite this page
Rajagopal, Shriram. "Byzantium / Constantinople." Onomastikon: A Digital Atlas of Ancient Names. Last modified July 23, 2026. https://onomastikon.org/civilizations/byzantium.
@misc{onomastikon-byzantium,
author = {Rajagopal, Shriram},
title = {Byzantium / Constantinople},
year = {2026},
howpublished = {\url{https://onomastikon.org/civilizations/byzantium}},
note = {Onomastikon: A Digital Atlas of Ancient Names}
}Spot an error on this page? Suggest a correction →