Philadelphia

From Latin Philadelphia, from Ancient Greek Φιλαδέλφεια (Philadélpheia), from φιλάδελφος (philádelphos, “brother/sibling-loving”) + -εια (-eia, “-ia: forming placenames”), from the combining form of φῐλέειν (philéein, “to love”) + ἀδελφός (adelphós, “brother, sibling”). In reference to the city in Turkey, named for the loyal Attalus II Philadelphus of Pergamon. In reference to the city in Jordan, named for the incestuous Ptolemy II Philadelphus of Egypt. In reference to the American city, named for the ancient towns as well as the Quaker William Penn's aim of fostering religious tolerance. Doublet of Filadelfia.

• IPA^(key): /fɪləˈdɛlfi.ə/
  • (local) IPA^(key): [fɪɫəˈdɜɫfi.ə]

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Philadelphia

1. The largest city in Pennsylvania, United States, and the county seat of coterminous Philadelphia County; former capital of the United States.

   Synonyms: (informal) Philly, (slang) Killadelphia, (poetic) City of Brotherly Love

2. (historical) Former name of Amman, the capital of Jordan.
3. (historical) Former name of Alasehir, a city in Turkey.
4. A locale in the United States; named for the city in Pennsylvania.
   1. An unincorporated community in Cass County, Illinois.
   2. An unincorporated community in Sugar Creek Township, Hancok County, Indiana.
   3. A city, the county seat of Neshoba County, Mississippi.
   4. A town and village in Jefferson County, New York.
   5. A small city in Loudon County, Tennessee.
5. A village in Brandenburg, Germany; named for the city in Pennsylvania.
6. A village in Sunderland, Tyne and Wear, England; named for the city in Pennsylvania (OS grid ref NZ3352).
7. A suburb of Cape Town, South Africa.

Borrowed from Ancient Greek Φιλαδέλφεια (Philadélpheia).

• (Classical) IPA^(key): /pʰi.la.delˈpʰiː.a/, [pʰɪɫ̪äd̪ɛɫ̪ˈpʰiːä]
• (modern Italianate Ecclesiastical) IPA^(key): /fi.la.delˈfi.a/, [filäd̪elˈfiːä]

Philadelphīa f sg (genitive Philadelphīae); first declension

1. (historical) Philadelphia (ancient Greek city in the Decapolis in modern Jordan; modern Amman)
2. (historical) Philadelphia (ancient Greek city in Lydia in modern Turkey; modern Alaşehir)
3. (New Latin) Philadelphia (the largest city in Pennsylvania, United States).

First-declension noun, with locative, singular only.

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