8 letters · 10 points in Scrabble
originFrom deed + -less; obsolete sense is from earlier dadless, probably from Old Norse dáðlauss (“without virtue, incapable, lacking in courage and drive, despicable, cowardly”). Cognate with Danish dådløs (“non-heroic”), Swedish dådlös (“listless, shiftless”).
Etymology from Wiktionary, CC BY-SA 3.0