8 letters · 15 points in Scrabble
adjective extremely evil or cruel; expressive of cruelty or befitting hell
originEtymology tree English fiend Proto-Indo-European *-iskos Proto-Germanic *-iskaz Proto-West Germanic *-isk Old English -isċ Middle English -ish English -ish English fiendish From fiend + -ish.
Etymology from Wiktionary, CC BY-SA 3.0