Extended Strong's Greek Lexicon (Abbott-Smith based)
cleansing
Usage: καθαρισμός, -oῦ, τό (καθαρίζω). [in LXX for טָהֵר, טׇהֳרָה, etc. ;] cleansing, purification: Jhn.3:25; with genitive subjc., τ. Ἰουδαίων, Jhn.2:6; with genitive obj., of women after childbirth, Luk.2:22; of lepers, Mrk.1:44, Luk.5:14; with genitive of thing(s), τ. ἁμαρτιῶν, Heb.1:3, 2Pe.1:9 (Cremer, 319).† (AS)