h 4 i 1 l 1 a 1 r 1 i 1 o 1 u 1 s 1
9 letters · 12 points in Scrabble
Meaning
adjective marked by or causing boisterous merriment or convulsive laughter
originLearned borrowing from Latin hilaris (“cheerful”) + -ious, from Ancient Greek ἱλαρός (hilarós, “cheerful, merry”).
Etymology from Wiktionary, CC BY-SA 3.0