exostosis

The story

1. Ancient Greek · derived fromὀστέον“bone”
2. Koine Greek · derived fromἐξόστωσις“a diseased excrescence on the bone”
3. English todayexostosis

From Koine Greek ἐξόστωσις (exóstōsis, “a diseased excrescence on the bone”), from Ancient Greek ὀστέον (ostéon, “bone”).

Words from the same roots