Liddell-Scott-Jones

σειρομάστης (seiromastēs) a spear ^G:N-M

σειρομάστης, ου, ὁ,

properly pit-searcher, i.e. a probe or gauge, with which tax-gatherers searched corn-pits and magazines, used in war to try whether there were pits in the ground, [Refs 3rd c.BC+]

__II barbed lance of the same shape, [LXX+1st c.AD+]
__II.2 use of the ς[Refs 4th c.BC+]

_{LSJ Scripture Refs: LXX.1Kgs.18.28}