Strong's 4686 (σπεῖρα)

band

a coil (spira, "spire"), i.e. (figuratively) a mass of men (a Roman military cohort; also (by analogy) a squad of Levitical janitors)

of immediate Latin origin, but ultimately a derivative of G138 (αἱρέομαι) in the sense of its cognate G1507 (εἱλίσσω);