Third-person singular simple present indicative form of cleanse.(verb)
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Use "cleanseth" in a sentence
"No; if you will only keep on trusting to that precious blood, and not turn away from it, He says that it cleanseth, that is, _goes on cleansing_."
"He is speaking not of justification through His blood once for all, but of the present sanctification ( "cleanseth" is present tense) which the believer, walking in the light and having fellowship with God and the saints, enjoys as His privilege."
"Quoth the Prophet, ‘The bath is the blessing of the house, for that it cleanseth the body and calleth to mind the Fire.’"