σπειρ-ηδόν · speir-ēdon — LSJ
in coils, Opp. H. 1.516, Philum. Ven. 22.2; in a ring, AP 9.301 (Secund.); in zig-zag lines (= σπυριδόν, q.v.), γράφειν Sch. D.T. p.484 H.
(σπεῖρα II) of troops, in maniples, manipulatim, Plb. 5.4.9, LXX 2 Ma. 5.2; ἡ σ. μάχη Str. 3.3.7.