FROM STRONG’S GREEK DICTIONARY (1890)

Strong’s Greek Dictionary (1890) — public domain, printed whole.

katharismos καθαρισμός — kath-ar-is-mos' — from 2511; a washing off, i.e. (ceremonially) ablution, (morally) expiation:--cleansing, + purge, purification(-fying).

see GREEK for 2511