Lapithaeus
Could not find Lapithaeae in Logeion dictionaries.
Lapithaeae Proper-name adjective: feminine genitive singular, Proper-name adjective: feminine vocative plural, Proper-name adjective: feminine nominative plural, Proper-name adjective: feminine dative singular of Lapithaeus
Lăpĭthæus et Lăpĭthēĭus, a, um, des Lapithes : Ov. M. 12, 530 || Ov. M. 14, 670.