Kunatsa (Refining in English) zvinoreva kuchenesa simbi kunobvisa manyara asingadiwe musimbi iyi. Simbi dzinonatswa nenzira dzakasiyana dzinosanganisira: kunyautsa nemoto; kunyunguditsa nekupatsanura zvine huduma hwakasiyana; kuchenesa nenzira dzinotsauranisa nemagetsi. Herero vanoti okukoha (purification). Mamwe mazwi: koha kana kohora (purify; purge). [Ou-kohoke (purity). Saghala vanoti kuelesa (v. purify).