thius

From LSJ

ξένῳ δὲ σιγᾶν κρεῖττον ἢ κεκραγέναι → it's better for a stranger to keep silence than to shout (Menander)

Source

Latin > French (Gaffiot 2016)

thīus (tīus), ĭī, m. (θεῖος), oncle : Isid. Orig. 9, 6, 15.