8 letters · 13 points in Scrabble
adjective not causing or capable of causing harm
originFrom Middle English harmles, from Old English *hearmlēas, from Proto-Germanic *harmalausaz (“without harm; harmless”), equivalent to harm + -less. Cognate with German harmlos (“harmless”), Danish harmløs (“harlmess”), Swedish harmlös (“harmless”).
Etymology from Wiktionary, CC BY-SA 3.0