9 letters · 16 points in Scrabble
adjective displaying luxury and furnishing gratification to the senses
adjective rich and superior in quality
originFrom Middle English luxurious, from Old French luxurios (modern French luxurieux), from Latin lū̆xuriōsus (“rank, luxuriant, profuse, excessive, immoderate”), from lū̆xuria (“rankness, luxury”), from lū̆xus (“extravagance, luxury”). By surface analysis, luxury + -ous.
Etymology from Wiktionary, CC BY-SA 3.0