A priest is a religious figure who performs ceremonies, particularly in the Roman Catholic, Anglican, or Orthodox church. During a Catholic baptism, a priest sprinkles holy water on a baby's head.
Though priests are often thought of as Christian, there are other religions with priests, including some branches of Shintoism and Hinduism. Priests often lead religious services, perform weddings and other religious rites, and in many cases work full time for their churches. Priest comes from the Old English prēost, and it shares a root with Presbyterian, the Greek presbyteros, "an elder."