ἱερατεύω (hierateúō|hee-er-at-yoo'-o|verb|to perform the service of a priest)
[Grk] ἱερατεύω LN: 53.85 GK: G2634 Hebrew: כָּהַן‎
Derivation: prolongation from ἱερεύς;
Strong's: to be a priest, i.e. perform his functions
KJV: --execute the priest's office.
See: ἱερεύς