9 letters · 16 points in Scrabble
noun a benign outgrowth from a bone (usually covered with cartilage)
originFrom Koine Greek ἐξόστωσις (exóstōsis, “a diseased excrescence on the bone”), from Ancient Greek ὀστέον (ostéon, “bone”).
Etymology from Wiktionary, CC BY-SA 3.0