French roseau

← Old English rysc (cognate)

← Danish rør (cognate)

← German Rohr (cognate)

← English rush (link)

← French ros (mention)

← Middle French ros (mention)

← Old French ros (mention)

← Old French rosel (cognate)

← Proto-Germanic *rausą (mention)

← Proto-Germanic *rauzą (mention)

← Old High German rōr (cognate)

← Proto-Indo-European *er- (mention)

← Old Norse reyrr (cognate)

→ French Roubaix (mention)

→ French roselière (mention)

→ Occitan raus (cognate)