Ceus
Could not find Ceo in Logeion dictionaries.
Ceo 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 Ceus
Cēus, a, um, v. Cea, I. B.
Cēus, a, um, s. Cēa.
Cēus, (14) a, um, v. Cea.