matri
matri is a Latin form of mater, meaning “mother”. It is the dative singular feminine noun.
Found 223 times in the Latin texts on Socratos.
Where it is used
Cicero, In C. Verrem 2.1.92: cum ad HS viciens quinquiens redegisse constaret, ut Romam rediit, nullam litteram pupillo, nullam matri eius, nullam tutoribus reddidit; servos artifices pupilli cum haberet domi, circum pedes autem homines formos …
Ovid, Metamorphoses 10.686: Templa, deum Matri quae quondam clarus Echion
All forms of mater (declension table)
Source: Socratos (socratos.org), a free reader for Ancient Greek and Latin. Grammar from the Perseus Treebank and Morpheus; dictionary entries from Lewis & Short, A Latin Dictionary (Perseus Digital Library, CC BY-SA). Counts are from the texts on Socratos.