Eunuch (noun)

1. A man who has been castrated, especially (in the past) one employed to guard the women's living quarters in a harem.
2. A man or boy who is castrated, typically one employed as a harem attendant or palace official in the past.

Origin:

Late middle english: via latin from greek eunoukhos, from eunē "bed" + -oukhos "keeper".

Examples:

1. Eunuch was a term used in the past for castrated men, typically employed in harems or as palace officials.
2. The eunuch was appointed to guard the queen.
3. The castration of the eunuch was done to prevent the possibility of any sexual attraction to the women in the harem.
4. The eunuch was a powerful figure in the palace court.
5. Eunuchs were often used as advisors to the emperor because they were not able to have children.