8 letters · 16 points in Scrabble
noun thin epithelial membrane lining the ventricles of the brain and the spinal cord canal
originFrom Ancient Greek ἐπένδυμα (epénduma), "upper garment", from ἐπενδύνω (ependúnō, “I put on over”) + -μα (-ma, noun suffix), from ἐπι- (epi-, “on, over”) + ἐνδύνω (endúnō, “I put on (clothes)”).
Etymology from Wiktionary, CC BY-SA 3.0