Byzantion

Via Latin Bȳzantion from Ancient Greek Βῡζᾰ́ντῐον (Būzántion).

Byzantion n

1. Byzantium (ancient Greek city situated on the Bosporus, named Constantinople in 330 CE, and now known as Istanbul)

   Synonyms: Cařihrad, Istanbul, Konstantinopol

This proper noun needs an inflection-table template.

• Bȳzantium

From Ancient Greek Βῡζᾰ́ντῐον (Būzántion).

• (Classical) IPA^(key): /byːzˈzan.ti.on/, [byːz̪ˈd̪͡z̪än̪t̪iɔn]
• (modern Italianate Ecclesiastical) IPA^(key): /bidˈd͡zan.t͡si.on/, [bid̪ˈd̪͡z̪änt̪͡s̪ion]

Bȳzantion n sg (genitive Bȳzantiī); second declension

1. Alternative form of Bȳzantium (“Byzantium, ancient city on the Bosporus founded c. 660 BC, becoming an Eastern Roman capital named Constantinople from c. AD 330-1930; now called Istanbul”)

Second-declension noun (neuter, Greek-type), with locative, singular only.

• Cōnstantīnopolis

• Byzantion in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.