commater

From com- (“joint”) + māter (“mother”).

• (Classical Latin) IPA^(key): [kɔmˈmaː.tɛr]
• (modern Italianate Ecclesiastical) IPA^(key): [komˈmaː.ter]

commāter f (genitive commātris); third declension

1. (Late Latin) godmother (in relation to godchild or fellow godparent or parent)
2. (informal) a female companion, buddy

Third-declension noun.

• compater

• “commater”, in Gaffiot, Félix (1934), Dictionnaire illustré latin-français, Hachette.