manuballista

Etymology
From +.

Noun

 * 1) A torsion-powered hand weapon, or possibly a crossbow
 * The only contemporary account of crossbows is by Vegetius, who writes:
 * Erant tragularii, qui ad manuballistas vel arcuballistas dirigebant sagittas.
 * Some scholars take this to mean these were different weapons, manuballistae being torsion-powered and arcuballistae being crossbows. In modern Spanish and Italian a crossbow is called and  respectively, while in French and German it's called  and.
 * 1)  gun, firearm