10 letters · 15 points in Scrabble
adjective extraordinarily good or great ; used especially as intensifiers
adjective being or having the character of a miracle
adjective too improbable to admit of belief
originFirst attested from 1300 as Middle English merveilous, from Old French merveillus, from merveille (“a wonder”) + -us. Doublet of merveilleux. See also marvel.
Etymology from Wiktionary, CC BY-SA 3.0