Autonomy

google

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early 17th century: from Greek autonomia, from autonomos ‘having its own laws’, from autos ‘self’ + nomos ‘law’.

wiktionary

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Borrowed from Ancient Greek αὐτονομῐ́ᾱ(autonomíā, “freedom to use its own laws, independence”), from αὐτόνομος(autónomos, “living under one's own laws, independent”) +‎ -ῐ́ᾱ(-íā, “-y, -ia”, nominal suffix). Surface analysis auto-(“self”) +‎ -nomy(“a system of rules or laws about a particular field”).

etymonline

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autonomy (n.)

"autonomous condition, power or right of self-government," 1620s, of states, from Greek autonomia "independence," abstract noun from autonomos "independent, living by one's own laws," from autos "self" (see auto-) + nomos "custom, law" (from PIE root *nem- "assign, allot; take"). Of persons, from 1803. In Kantian metaphysics, "doctrine of the Will giving itself its own law, based on conscience."