Answer:The greek prefix auto meaning is 'self'.
Step-by-step explanation:
The word auto indicates that it can manage the operation by itself hence the work automobile and autopilot came into existence. Automobile is a vehicle which can move by itself without any horses.
Autopilot denotes that a vehicle can drive itself without any human intervention to steer it. Auto can be said as prefix or the root word some of the other examples are autograph which means self signature, autobiography means one's one story.