fibrinus
From LSJ
Ζῆν οὐκ ἄξιος, ὅτῳ μηδὲ εἷς ἐστι χρηστὸς φίλος → Life is not worth living if you do not have at least one friend.
Latin > English (Lewis & Short)
fibrīnus: a, um, adj. 1. fiber; cf. bebrinus,
I of the beaver, beaver-: pelles, Plin. 32, 9, 36, § 110: vestis, Isid. 19, 22, 16; Plin. 32, 10, 42, § 124.
Latin > French (Gaffiot 2016)
fĭbrīnus, a, um (fiber 2), de castor : Plin. 32, 110 || fibrīnum, ī, n., poil de castor : Isid. Orig. 19, 27, 2.