8 letters · 15 points in Scrabble
adjective of or relating to or resembling a comet
originEtymology tree English comet Proto-Indo-European *-yósder. Proto-Italic *-āzijos Latin -āriusder. Middle English -arie English -ary English cometary From comet + -ary.
Etymology from Wiktionary, CC BY-SA 3.0