7 letters · 11 points in Scrabble
noun colorless gas found in natural gas and petroleum; used as a fuel
originFrom clipping of propionic acid + -ane, from French propionique, from Ancient Greek πρό (pró) + πίων (píōn, “fat”). Analyzable as prop- + -ane, borrowing or calque of German Propan.
Etymology from Wiktionary, CC BY-SA 3.0