Etymology
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motor (n.)

"one who or that which imparts motion," mid-15c., "controller, prime mover (in reference to God);" from Late Latin motor, literally "mover," agent noun from past-participle stem of Latin movere "to move" (from PIE root *meue- "to push away"). Sense of "agent or force that produces mechanical motion" is first recorded 1660s; that of "machine that supplies motive power" is from 1856. Motor-home is by 1966. Motor-scooter is from 1919. First record of slang motor-mouth "fast-talking person" is from 1970.

motor (v.)

travel or drive in a motor vehicle," "1896, from motor (n.). Related: Motored; motoring.

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Definitions of motor
1
motor (n.)
machine that converts other forms of energy into mechanical energy and so imparts motion;
motor (n.)
a nonspecific agent that imparts motion;
happiness is the aim of all men and the motor of all action
2
motor (adj.)
causing or able to cause motion;
motor energy
Synonyms: motive
motor (adj.)
conveying information to the muscles from the CNS;
motor nerves
Synonyms: centrifugal
3
motor (v.)
travel or be transported in a vehicle;
They motored to London for the theater
Synonyms: drive
From wordnet.princeton.edu