Brewer's: Ogygian Deluge
A flood which overran a-part of Greece while Ogyges was king of Attica. There were two floods so called- one in Boeotia, when the lake Copais overflowed its banks; and another in Attica, when the whole territory was laid waste for two hundred years (B.C. 1764).
Varro tells us that the planet Venus underwent a great change in the reign of Ogyges (3 syl.). It changed its diameter, its colour, its figure, and its course.
Ogyges Deluge occurred more than 200 years before Deucalion's Flood.