manumission (n.)youdaoicibaDictYouDict
c. 1400, from Old French manumission "freedom, emancipation," and directly from Latin manumissionem (nominative manumissio) "freeing of a slave," noun of action from past participle stem of manumittere "to set free," from the phrase manu mittere "release from control," from manu, ablative of manus "power of a master," literally "hand" (see manual (adj.)) + mittere "let go, release" (see mission).
manumit (v.)youdaoicibaDictYouDict
early 15c., from Latin manumittere "to release, set at liberty, emancipate," literally "to send from one's 'hand'" (i.e. "control"); see manumission. Related: Manumitted; manumitting.