G2420
ἱερωσύνη
priesthood
ἱερωσύνη, -ης, ἡ (ἱερός), [in LXX: 1Ch.29:22 (כָּהַן), I Est.5:38, Sir.45:24, 1Ma.2:54 1Mac 3:49 1Mac 7:9 1Mac 7:21, 4Ma.5:35 4Mac 7:6 * ;] priesthood: Heb.7:11-12, 24.† (AS)
The KJV translates G2420 in the following manner:
priesthood (8x), an (2x)
Full Thayer's lexicon entry
ἱερωσύνη — hierōsýnē
ἱερωσύνη (on the omega ὦ see ἀγαθωσύνη, init), ἱερωσύνης, ἡ (ἱερός), priesthood, the priestly office: Hebrews 7:11f, 14, R G, 24. (Sir 45:24; 1Es 5:38; 1Ma 2:54 1Ma 3:49; 4Ma 5:34; Herodotus, Plato, Demosthenes, Diodorus, Joseph, Plutarch, Herodian, others.)
3 occurrences