circuncidar

To circumcise — a precise medical and religious term, with particular significance in Jewish and Islamic tradition (circuncidar al niño as a religious rite, distinct from circumcision performed for medical reasons elsewhere).

• La tradición judía manda circuncidar a los niños a los ocho días. — Jewish tradition requires circumcising boys on the eighth day.
• El médico explicó por qué decidieron circuncidar al bebé. — The doctor explained why they decided to circumcise the baby.
• En algunas culturas se circuncida a los varones en la adolescencia. — In some cultures boys are circumcised during adolescence.

This is a precise, single-meaning medical/religious term — there's no colloquial extension or figurative use to watch out for.

• quote Génesis 17:12 — The biblical covenant of circumcision: God commands Abraham that every male in his household "de ocho días será circuncidado" (Genesis 17:12) as the sign of the covenant — the foundational religious reference point for this verb.