French Rouen

← Gaulish Ratumacos (mention)

← Gaulish *rato- (mention)

← Gaulish *magos (mention)

← Proto-Celtic *magos (derived)

← Latin Rotomagus (inherited)

→ English Rouen (borrowed)

→ French Rouennais (suffix)

→ French rouennais (suffix)

→ Portuguese Rouen (borrowed)

→ Russian Руан (borrowed)