Abbott-Smith Manual Greek Lexicon
ἱερουργέω (G2418)
1 **† ἱερουργέω , -ῶ ( ἱερουργός , a sacrificing priest ) [in LXX: IV Mac 7:3 R (cf. -γία , IV Mac 3:30 א R)*;] to perform sacred rites ; c. acc., to minister in priestly service ( minister in sacrifice , R, mg.), τὸ εὐαγγέλιον , Ro 15:16 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain