In many Christian churches, a member of the second grade of clergy ranking below a bishop but above a deacon and having authority to administer the sacraments.
A person having the authority to perform and administer religious rites.
tr.v.
priest·ed, priest·ing, priests To ordain or admit to the priesthood.
[Middle English preost, from Old English prēost, perhaps from Vulgar Latin *prester (from Late Latin presbyter; see presbyter) or from West Germanic *prēvost (from Latin praepositus, superintendent; see provost).]