Cerbereus
Could not find Cerbereo in Logeion dictionaries.
Cerbereo proper-name adjective neuter dative singular, proper-name adjective masculine ablative singular, proper-name adjective masculine dative singular, proper-name adjective neuter ablative singular of Cerbereus
Cerbereumque canem nodat
Cerbereo dente teneor. qui dii mihi dent te!