celibate

Concise Oxford English Dictionary © 2008 Oxford University Press:
celibate /ˈsɛlɪbət/

▶adjective

• 1 abstaining from marriage and sexual relations for religious reasons.

• 2 having or involving no sexual relations.

▶noun a celibate person.

– derivatives
celibacy noun.

– origin C19: from celibacy (C17, from Fr. célibat or L. caelibatus ‘unmarried state’) + -ate2.