ἱερατεύω (hierateúōhee-er-at-yoo'-overbto 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