ἀκᾰθαρ-σία · akathar-sia — LSJ
uncleanness, foulness, of a wound or sore, Hp. Fract. 31, cf. Pl. Ti. 72c (pl.); ἀγγείων Hp. Epid. 6.31.
dirt, filth, BGU 1117.27 (13 B.C.), etc.
in moral sense, depravity, D. 21.119.
ceremonial impurity, LXX Le. 15.3, al.