Liddell-Scott-Jones

γαῖσος (gaisos) a javelin ^G:N-M

γαῖσος, ὁ

(or γαῖσον, τό, [Refs 3rd c.BC+], a sort of javelin, [LXX+2nd c.BC+]:—hence probably Celtic proper name Γαισάται or γαίο-οι, οἱ, explained by [Refs 2nd c.BC+] as mercenaries, [Refs 2nd c.AD+]

_{LSJ Scripture Refs: LXX.Josh.8.18 ☩ LXX.Judg.9.7}