emancipateyoudaoicibaDictYouDict[emancipate 词源字典]
emancipate: [17] Despite modern associations with women’s liberation, emancipate has no etymological connection with man. It comes from Latin ēmancipāre, which meant originally ‘free from parental power’. This was a compound verb formed from the prefix ex- ‘out of’ and mancipium ‘ownership’, and referred in Roman law to the freeing of a son from the legal authority of the male head of the family, thus making him responsible for himself in law. Mancipium (source of the archaic English noun manciple ‘steward, purveyor’ [13]) was ultimately a compound noun formed from manus ‘hand’ (as in English manual) and capere ‘take’ (as in English captive and capture).

The association of the verb with the ‘freeing of slaves’, the basis of the present English meanings, is a modern development.
=> captive, capture, manciple, manual[emancipate etymology, emancipate origin, 英语词源]
emancipate (v.)youdaoicibaDictYouDict
1620s, "set free from control," from Latin emancipatus, past participle of emancipare "put (a son) out of paternal authority, declare (someone) free, give up one's authority over," in Roman law, the freeing of a son or wife from the legal authority (patria potestas) of the pater familias, to make his or her own way in the world; from assimilated form of ex- "out, away" (see ex-) + mancipare "deliver, transfer or sell," from mancipum "ownership," from manus "hand" (see manual (adj.)) + capere "take" (see capable). Related: Emancipated; emancipating.

Not used by the Romans in reference to the freeing of slaves, the verb for this being manumittere. The English word was adopted in the jargon of the cause of religious toleration (17c.), then anti-slavery (1776). Also used in reference to women who free themselves from conventional customs (1850).