Proto-Indo-European *trep-

→ English thrive (derived)

→ English frother (derived)

→ English frover (derived)

→ English thrave (derived)

→ Middle English tharf (mention)

→ Ancient Greek τρέπω (inherited)

→ Ancient Greek ἀποτρέπω (derived)

→ Icelandic þreifa (mention)

→ Latin turpis (derived)

→ Latin trepidus (derived)

→ Sanskrit त्रपते (root)

→ Sanskrit त्रपते (mention)