Merriam-Webster's Collegiate® Dictionary, 11th Edition
OVERRIDE
I. transitive verb (overrode; overridden; overriding) Date: before 12th century to ride over or across ; trample , to ride (as a horse) too much or too hard,
3. to prevail over ; dominate , to set aside ; annul , to neutralize the action of (as an automatic control), to extend or pass over,
II. noun
Date: 1931
a commission paid to managerial personnel on sales made by subordinates, royalty 5a, a device or system used to override a control, an act or an instance of overriding