SOAP

I. noun Etymology: Middle English sope, from Old English sāpe; akin to Old High German seifa ~ Date: before 12th century 1. a cleansing and emulsifying agent made usually by action of alkali on fat or fatty acids and consisting essentially of sodium or potassium salts of such acids, a salt of a fatty acid and a metal, ~ opera , II. transitive verb Date: 1585 to rub ~ over or into, flatter