castrate

Etymology 1

From Latin castrātus, past participle of castrō.

noun

1. A castrated man; a eunuch.
   The castrate voice had a strange power not duplicated by soprano or countertenor. 1990, Camille Paglia, Sexual Personae

Etymology 2

From the past participle stem of Latin castrāre.

verb

1. (transitive) To remove the testicles of a person or animal.
   If the priests of Diana of Ephesus castrated themselves and offered their genitals on the altar, it was because the phallus was the symbol of the dying body. 1981, William Irwin Thompson, The Time Falling Bodies Take to Light: Mythology, Sexuality and the Origins of Culture, London: Rider/Hutchinson & Co., page 129
2. (transitive) To remove the ovaries and/or uterus of an animal.
3. (transitive, figurative) To take something from; to render imperfect or ineffectual.