Proto-Germanic *rōkijaną

→ English reck (derived)

→ English retch (inherited)

→ Old English reccan (inherited)

→ Old English recan (inherited)

→ Danish røgt (inherited)

→ German geruhen (inherited)

→ Finnish ruokkia (derived)

→ Faroese røkja (derived)

→ Scottish Gaelic reachd (cognate)

→ Ancient Greek ἀρήγω (cognate)

→ Icelandic rækja (derived)

→ Dutch roeken (inherited)

→ Old Irish recht (cognate)