Proto-Indo-European *dʰrebʰ-

→ English drab (root)

→ English drab (derived)

→ English dreve (derived)

→ Old English drepe (derived)

→ Czech drobit (derived)

→ Czech droby (derived)

→ Ancient Greek τρέφω (derived)

→ Latin drappus (derived)

→ Lithuanian drebėti (root)

→ Lithuanian drebėti (derived)

→ Portuguese trapo (mention)

→ Russian дребезжать (derived)