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early 15c., castracioun, from Latin castrationem (nominative castratio), noun of action from past participle stem of castrare "to castrate, emasculate," supposedly from a noun *castrum "knife, instrument that cuts," from PIE root *kes- "to cut" (see caste). Freud's castration complex is attested from 1914 in English (translating German Kastrationsangst).
castrate cas·trate (kās'trāt')
v. cas·trat·ed, cas·trat·ing, cas·trates
To remove the testicles of a male; emasculate.
To remove the ovaries of a female; spay.
castration cas·tra·tion (kā-strā'shən)
Removal of the testicles or ovaries; sterilization.
A psychological disorder that is manifested in the female as the fantasized loss of the penis or in the male as fear of its actual loss.