Meaning of “auto-” - Learner’s Dictionary

auto-

prefix uk us /ɔːtəʊ-/
without humans

operating without being controlled by humans:

autopilot (= a computer that directs an aircraft)
self

self:

an autobiography (= a book that someone writes about their own life)

(Definition of “auto- prefix” from the Cambridge Learner’s Dictionary © Cambridge University Press)