Strong's G2406 — ἱεράτευμα (noun)
hierateuma (hee-er-at'-yoo-mah) n.
1. the priestly fraternity, i.e. sacerdotal order (figuratively)
[from G2407]
KJV: priesthood 
Root(s): G2407 
Hebrew root: ἱερατεύω
Occurrences: 2