rudder
UK: ˈrʌdə | US: ˈrʌdər
n. a flat piece of wood or metal at the back of a boat or aircraft, used for steering
The word "rudder" traces back to Old English rōþor, meaning "oar" or "steering paddle," derived from the Proto-Germanic *rōþra- (to row). The root rud- is linked to the action of steering, while -der serves as a noun-forming suffix. Over time, the term evolved to specifically denote the steering device at the stern of a vessel, reflecting its functional continuity from oars to fixed rudders in maritime technology.
The captain adjusted the rudder to navigate through the narrow channel.
A broken rudder left the ship drifting helplessly in the storm.
The pilot used the rudder pedals to keep the aircraft aligned during takeoff.
Ancient sailors relied on a simple wooden rudder for directional control.
Engineers tested the new rudder design for improved maneuverability.