genesia, genethlios denotes the occasion on which Herod marks his birthday in the Gospel narratives.

The attested use refers to a birthday occasion: Mark 6:21 places it in Herod's banquet, while Matthew 14:6 places it at the time of Herodias's daughter's dance.

1. Birthday occasion or celebration · dominant

   The dative plural form occurs in the setting of Herod's observance. In Mark 6:21 the APB renders a banquet given by Herod "on his birthday"; in Matthew 14:6 it renders the occasion as the time "when Herod's birthday came," followed by Herodias's daughter's dance.

   Mark 6:21Matthew 14:6

In the Anselm Project Bible: The APB presents the occasion as "on his birthday" in Mark 6:21 and "when Herod's birthday came" in Matthew 14:6. These are translation renderings of the verse context rather than definitions.