\De*terge"\, v. t. [imp. & p. p. {Deterged}; p. pr. & vb. n. {Deterging}.] [L. detergere, detersum; de + tergere to rub or wipe off: cf. F. d['e]terger.] To cleanse; to purge away, as foul or offending matter from the body, or from an ulcer.