LSJ
ον, secure against enchantments, free from harm, CIG 5053, 5119 (Nubia), Cat.Cod.Astr. 7.234; esp. of children, BGU 8.11, al., POxy. 300 (i AD); — in act. sense, acting as a charm or protection against witchcraft, ἀ. ἀνθρώποις καὶ ζῴοις v.l. in Dsc. 3.91. Adv. -τως, ὑγιαίνειν POxy. 292 (i AD), cf. AP 11.267.
Act., not harming, PMagLeid. W. 18.7.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)