Main Entry: 1port·man·teau Pronunciation: \pȯrt-ˈman-(ˌ)tō\ Function: noun Inflected Form(s): plural port·man·teaus or port·man·teaux \-(ˌ)tōz\ Etymology: Middle French portemanteau, from porter to carry + manteau mantle, from Latin mantellum — more at port Date: 1579 1 : a large suitcase 2 : a word or morpheme whose form and meaning are derived from a blending of two or more distinct forms (as smog from smoke and fog)