Old English ruhha

← Danish rokke (cognate)

← Middle Dutch roche (cognate)

← Middle Dutch rogghe (mention)

← Proto-Germanic *rūhwaz (derived)

← Middle Low German roche (cognate)

← Middle Low German ruche (mention)

← Swedish rocka (cognate)

→ English roach (cognate)

→ Old English reohhe (cognate)

→ German Rochen (mention)

→ Dutch rog (mention)