Cynthius
Could not find Cynthi in Logeion dictionaries.
Cynthi Proper-name noun: masculine vocative singular, Proper-name adjective: neuter genitive singular, Proper-name adjective: masculine genitive singular of Cynthius
Cynthi Proper-name noun: masculine nominative plural, Proper-name noun: masculine genitive singular, Proper-name noun: masculine vocative plural of Cynthus
Cynthĭus, (13) ĭī, m. , Apollon [honoré sur le mont Cynthus] : Virg. B. 6, 3.