pentaphyllon
From LSJ
λύπης ἰατρός ἐστιν ὁ χρηστὸς φίλος → a true friend is grief's physician, a worthy friend is a physician to your pain
Latin > English (Lewis & Short)
pentăphyllon: i, n., = πεντάφυλλον, i. q. quinquefolium and pentapetes,
I five-leaved grass, cinque-foil, Plin. 25, 9, 62, § 109; App. Herb. 2.
Latin > French (Gaffiot 2016)
pentăphyllŏn, ī, n. (πεντάφυλλον), quintefeuille ou potentille [plante] : Plin. 25, 109 ; Ps. Apul. Herb. 2.