A.= ἀτριβής, χεῖρας ἀτρίπτους ἁπαλάς not worn hard by work, Od.21.151; of corn, not threshed, X.Oec.18.5; of bread, not kneaded, Arist.Pr.929a17; “μᾶζα” not pounded, Hp.Vict.2.40; ἄ. ἄκανθαι trackless thorns, Theoc.13.64; κέλευθοι ἄ. untrodden ways, Opp.H.4.68: metaph., “ἄ. φρονήσεως ὁδοί” Ph.1.316.
2. metaph., unknown, strange, Artem.4.63; of a problem, Simp.in Ph.520.23.