G4686:
σπεῖρα
(speîra)
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.