6 letters · 8 points in Scrabble
noun a consonant whose articulation involves movement of the lips
adjective of or relating to the lips of the mouth
adjective relating to or near the female labium
originBorrowing from Medieval Latin labiālis (“of or pertaining to the lips”), from labium (“a lip”) + -ālis (“-al”, adjectival suffix); equivalent to labium + -al.
Etymology from Wiktionary, CC BY-SA 3.0