7 letters · 8 points in Scrabble
originBorrowed from French dernier, a contraction of derrenier, from Old French derrain (“final, last”) (by analogy with premier), from Vulgar Latin *dēretrānus, from Latin dē (“from, away from”) + retrō (“back; backwards; behind”) + -ānus (“of or pertaining to”).
Etymology from Wiktionary, CC BY-SA 3.0