Etymology: Middle French or Latin; Middle French, from Latin sanction-, sanctio, from sancire to make holy — more at sacred
Date: 15th century
1: a formal decree; especially: an ecclesiastical decree 2 aobsolete: a solemn agreement :oathb: something that makes an oath binding 3: the detriment, loss of reward, or coercive intervention annexed to a violation of a law as a means of enforcing the law 4 a: a consideration, principle, or influence (as of conscience) that impels to moral action or determines moral judgment b: a mechanism of social control for enforcing a society's standards c: explicit or official approval, permission, or ratification :approbation 5: an economic or military coercive measure adopted usually by several nations in concert for forcing a nation violating international law to desist or yield to adjudication