10 letters · 14 points in Scrabble
noun any substance that propels
adjective tending to or capable of propelling
originEtymology tree English propel Proto-Indo-European *-onts Latin -ns Latin -āns Old French -antbor. Proto-Indo-European *-onts Proto-Germanic *-ndz Proto-West Germanic *-andī Old English -ende Middle English -ant English -ant English propellant From propel + -ant.
Etymology from Wiktionary, CC BY-SA 3.0