9 letters · 16 points in Scrabble
noun a lightweight waterproof (usually rubberized) fabric
noun a waterproof raincoat made of rubberized fabric
originFrom Scottish Gaelic Mac an Tòisiche, meaning "son of the thane (Old Irish toísech (“leader”))". The brand is named after McIntosh, an apple cultivar, in turn also from the Scottish Gaelic name.
Etymology from Wiktionary, CC BY-SA 3.0