Lexical Definition

‎ἱεράτευμα‎ hieráteuma (hee-er-at'-yoo-mah) priesthood G:N-N
from ‎ἱερατεύω‎

priesthood.

Usage: 2 forms in 3 verses
Form Translated As     In Verse(s)
ἱεράτευμα a priesthood 1Pet.2.5
priesthood 1Pet.2.9
ιεράτευμα priesthood LXX.Exod.19.6

Abbott-Smith

ἱεράτευμα, -τος, τό (< ἱερατεύω), [in LXX: βασίλειον ἱ., Ex 19:6 (כֹּהֲנִים מַמְלֶכֶת) 23:22, II Mac 2:17*;]
a priesthood, body of priests: ἱ ἅγιον, I Pe 2:5; βασ. ἱ, I Pe 2:9 (LXX, Ex 19:6).†

Abbott-Smith References

Book Refs
Exodus 19:6 · 23:22
1 Peter 2:5 · 2:9

Liddell-Scott-Jones

ἱεράτευμα-ευμα, ατος, τό,

priesthood, [LXX+NT]

__2 body of priests, [Refs 6th c.AD+]

LSJ Scripture Refs: LXX.Exod.19.61Pet.2.9