from a compound of παρά and ἐμβάλλω; a throwing in beside (juxtaposition), i.e. (specially), battle-array, encampment or barracks (tower Antonia):--army, camp, castle.
neuter of a presumed derivative of a compound of σύν and the base of ἑδραῖος; a joint session, i.e. (specially), the Jewish Sanhedrin; by analogy, a subordinate tribunal:--council.
of immediate Latin origin, but ultimately a derivative of αἱρέομαι in the sense of its cognate εἱλίσσω; a coil (spira, "spire"), i.e. (figuratively) a mass of men (a Roman military cohort; also (by analogy) a squad of Levitical janitors):--band.