ἁγν-εία · hagn-eia — LSJ
purity, chastity, λόγων ἔργων τε S. OT 864 (lyr.), coupled with καθαρότης Hp. Morb.Sacr. 1, cf. 1 Ep.Tim. 4.12; τῶν θεῶν Antipho 2.1.10; ἁγνείη δʼ ἐστὶ φρονεῖν ὅσια App.Anth. 4.18.
strict observance of religious duties, Pl. Lg. 909e (pl.), etc.; in pl., purifications, ceremonies, Isoc. 11.21, J. BJ prooem. 10 [1.26], BGU 1198.12, etc.