- (5th BC Attic): IPA: /ɡenési.a/
- (1st BC Egyptian): IPA: /ɣɛnɛ́sia/
- (4th AD Koine): IPA: /ɣenésia/
- (10th AD Byzantine): IPA: /ʝenésia/
- (15th AD Constantinopolitan): IPA: /ʝenésia/
While γενέσια originally was used specifically for birthdays of the dead, with γενέθλιος being used for those of the living, in later Greek, it came in use for both. Also note that γενέσια is only in plural, even though the meaning is generally taken to be single.