sincero
From LSJ
Ξένοισι πιστοῖς πιστὸς ὢν γίγνου φίλος → Amicus esto fidus in fidum hospitem → Erweise treuen Fremden dich als treuer Freund
Latin > English (Lewis & Short)
sincēro: āvi, ātum, 1, v. a. sincerus,
I to make clean or pure, Diom. 361 P.
Latin > French (Gaffiot 2016)
sincērō, āre (sincerus), tr., rendre pur : Diom. 364, 28.
Latin > German (Georges)
sincēro, āvī, āre (sincerus), rein machen, Diom. 364, 28. Augustin. serm. 359, 7.