I. pōrtˈmant(.ˌ)ō, pȯrt-, pōət-, pȯt-, -maan-, -n.ˌtō noun
( plural portmanteaus or portmanteaux -ōz)
Etymology: Middle French portemanteau, from porter to carry + manteau mantle, from Latin mantellum — more at port
: traveling bag ; especially : a large bag of the gladstone type
II. ̷ ̷ˈ ̷ ̷(ˌ) ̷ ̷, ˈ ̷ ̷ˌ ̷ ̷_ ̷ ̷ adjective
: combining more than one use or quality
a portmanteau signature which covers a husband-and-wife collaboration — George Milburn
its central character is a portmanteau figure whose traits are derived from several mythical heroes — D.G.Hoffman