Proto-Indo-European *h₁rebʰ-

→ English reef (root)

→ English reef (derived)

→ English rib (root)

→ English rib (derived)

→ Old English rift (derived)

→ Arabic رف (derived)

→ Old Church Slavonic ребро (root)

→ Galician ripa (derived)

→ Galician ripiar (derived)

→ Ancient Greek ἐρέφω (root)

→ Ancient Greek ἐρέφω (inherited)

→ Dutch rib (root)

→ Russian ребро (root)