AUTOPILOT
autopilot, automatic pilot, robot pilot
(noun) a navigational device that automatically keeps ships or planes or spacecraft on a steady course
Source: WordNet® 3.1
Etymology
Noun
autopilot (countable and uncountable, plural autopilots)
(aviation, nautical) A mechanical, electrical, or hydraulic system used to guide a vehicle without assistance from a human being.
(by extension, figuratively) A state of mind where one no longer thinks about doing one's actions, but acts mechanically
Verb
autopilot (third-person singular simple present autopilots, present participle autopiloting, simple past and past participle autopiloted)
(intransitive, of a vehicle) To pilot itself; to drive or travel automatically.
Source: Wiktionary