ἄλῡπ-ος · alyp-os — LSJ
without pain, freq. in Trag. (not A.), E. IA 163, etc.: c. gen., ἄ. γήρως without pains of age, S. OC 1519; ἄ. ἄτης El. 1002; βίος E. Ba. 1004; ἀρχή S. OT 593; τὸ ἄ. Pl. R. 585a: Comp. -ότερος ib. 581e: Sup. -ότατος Lg. 848e. Adv. ἀλύπως, ζῆν, διατελεῖν live free from pain and sorrow, Id. Prt. 358b, Phlb. 43d, cf. Men. 549; ἀποθανεῖν Id. 14: Sup. ἀλυπότατα Lys. 24.10.
Act., causing no pain or grief, Hp. Art. 39 (Sup.), Pl. Plt. 272a, etc.; ἄ. οἶνος harmless, Hermipp. 82.5, cf. E. Ba. 423; ἄ. ἄνθος ἀνίας setting free from the pain of sorrow of wine, S. Fr. 172; ἀλυπότατος κλιντήρ, of a hospice, Epigr.Gr. 450 (Batanaea); σωλῆνες -ότατοι μετὰ ἁλῶν cause least pain, i.e. are least indigestible, Xenocr. 57, cf. Mnesith. ap. Ath. 3.92c; πεσσὸς -ότατος Aët. 16.36. Adv. ἀλύπως, τοῖς ἄλλοις ζῆν live without offence to others, Isoc. 12.5.
ἄλυπον, τό, herb terrible, Globularia Alypum, Plin. HN 27.22, Dsc. 4.178.