Cerbereus
Could not find Cerbereae in Logeion dictionaries.
Cerbereae 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 Cerbereus
Cerbereumque canem nodat
Cerbereo dente teneor. qui dii mihi dent te!