aequanimis
From LSJ
Καλὸν τὸ μηδὲν εἰς φίλους ἁμαρτάνειν → Nihil peccare in amicos est pulcherrimum → Gut ist, sich gegen Freunde nicht versündigen
Latin > English (Lewis & Short)
aequănĭmis: aequus-animus, adj. in Vet. Onomast. = εὐγνῶμων,
I kind, mild. —Adv.: aequănĭmĭter, calmly, with equanimity (only in later Lat.), Macr. S. 2, 4; Sulp. Dial. 1, 14; Amm. 19, 10; Tert. Patient. 8 al.
Latin > French (Gaffiot 2016)
æquănĭmis, e, indulgent, bienveillant : Herm. Past. 2, 51.