disrudder
/dɪsˈrʌdər/Definitions
1. noun
A person or thing that causes a boat to become off course or lose control, especially a person in charge of steering who makes a mistake.
“The disrudder’s error led the ship to crash against the rocks.”
2. verb
To cause a boat to become off course or lose control.
“The storm disruddered the sailors, making it difficult to navigate.”