Meaning

noun a hinged vertical airfoil mounted at the tail of an aircraft and used to make horizontal course changes

noun (nautical) steering mechanism consisting of a hinged vertical plate mounted at the stern of a vessel

originEtymology tree Proto-Indo-European *h₁reh₁- Proto-Indo-European *h₁roh₁-(ye-)-tider. Proto-Germanic *rōaną Proto-Indo-European *-tḗr Proto-Indo-European *-trom Proto-Germanic *-þrą Proto-Germanic *rōþrą Proto-West Germanic *rōþr Old English rōþor Middle English rother English rudder From Middle English rodder, rother, ruder, from Old English rōþor (“oar, rudder”), from Proto-West Germanic *rōþr,…

Etymology from Wiktionary, CC BY-SA 3.0