Dictionary entry

γερουσία

G. Abbott-Smith's A Manual Greek Lexicon of the New Testament

γερουσία, -ας, ἡ

(< γέρων), [in LXX (Hex. only in OT) for זָקֵן;]

a council of elders, senate; in NT, of the Sanhedrin (Cl. Rev., i, 43 f.; DB, ext., 99): Ac 5:21.†