Strong's G4686 — σπεῖρα (noun)
speira (spei`-rah) n.
1. a coil (spira, "spire")
2. (figuratively) a mass of men (a Roman military cohort)
3. (by analogy) a squad of Levitical janitors
[of immediate Latin origin, but ultimately a derivative of G138 in the sense of its cognate G1507]
KJV: band 
Root(s): G1507, G138 
Hebrew root: αἱρέομαι
Occurrences: 7