9 letters · 16 points in Scrabble
noun drowsiness and dullness manifested by yawning
noun an involuntary intake of breath through a wide open mouth; usually triggered by fatigue or boredom
originFrom Latin oscitans + -cy, present participle of ōscitō (“to yawn, gape, open the mouth”), from Latin os (“the mouth”).
Etymology from Wiktionary, CC BY-SA 3.0