(initial capital letter) (used as a title of respect applied or prefixed to the name of a member of the clergy or a religious order): Reverend Timothy Cranshaw; Reverend Mother.
2.
worthy to be revered; entitled to reverence.
3.
pertaining to or characteristic of the clergy.
noun
4.
Informal. a member of the clergy.
Origin: 1400–50; late Middle English < Latin reverendus worthy of being revered, gerund of reverērī to revere1