7 letters · 10 points in Scrabble
noun a small stream
originFrom Italian rivoletto, diminutive of rivolo (“trickle, little stream”), diminutive of rivo (“stream, brook, creek”), ultimately from Latin rīvulus, diminutive of rīvus. By surface analysis, Latin rīvus + -ule + -et.
Etymology from Wiktionary, CC BY-SA 3.0