autonomous (adj.) Look up autonomous at Dictionary.com
1800, "pertaining to autonomy;" 1804, "subject to its own laws," from Greek autonomos "having one's own laws," of animals, "feeding or ranging at will," from autos "self" (see auto-) + nomos "law," from PIE root *nem- "to assign, allot; to take" (see nemesis). Compare privilege. Used mostly in metaphysics and politics; see autonomic. Related: Autonomously.