pătrŭus

a, um, adj.

1. patruus

I. of or belonging to a father's brother, of an uncle (poet.): patruae verbera linguae, an uncle's, Hor C. 3, 12, 2: ense cadit patruo, Ov. F. 4, 55 (al. patrui).—Comically in sup.: patrue mi patruissime, Plaut. Poen. 5, 4, 24; 26.
Lewis & Short
A Latin Dictionary, 1879
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