δυσπεριαίρετος
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.
English (LSJ)
δυσπεριαίρετον, hard to strip off, peel, φλοιός prob. in Thphr. HP 5.1.1.
Spanish (DGE)
-ον
que se desprende con dificultad, difícil de quitar la corteza de los árboles, Thphr.HP 5.1.1 (cj. en ap. crít., cf. δυσπερικάθαρτος).