δυσλείωτος
From LSJ
κρείσσων ἐναρχόμενος βοηθῶν καρδίᾳ τοῦ ἐπαγγελλομένου καὶ εἰς ἐλπίδα ἄγοντος· δένδρον γὰρ ζωῆς ἐπιθυμία ἀγαθή (Proverbs 13.12 LXX) → One who sincerely sets about helping is better than one who makes promises leading to hope; for a kindly urge is a tree of life.
English (LSJ)
δυσλείωτον, = δυσλέαντος (hard to pound, hard to bray), opp. εὐλείωτος, Asclep. ap. Gal. 13.677.
Spanish (DGE)
-ον
difícil de machacar de plantas en preparados médicos, Asclep. en Gal.13.677, cf. Aët.8.70 (p.531).