spon·toon (spŏn-tōōn') n. A short pike carried by infantry officers and sergeants in the 18th century.
[French sponton, from Italian spuntone : s-, intensive pref.; see sforzando + puntone, kind of weapon, augmentative of punto, point (from Latin pūnctum, from neuter past participle of pungere, to pierce, prick; see peuk- in Indo-European roots).]