Encyclopedia of historical weapons - Onager

Roman Ballista, so named after a wild ass because of the way it kicked back upon firing. It was most common in the armies in the mid 4th century AD. Since they were so large and slow to move the onagri were most suited for sieges. The length of the sling on the end of the arm could be adjusted to affect the trajectory of the stone.

Encyclopedia of historical weapons

From Encyclopedia

Cod-piece
Fabric covering for the groin, latterly padded. Its counter­part in armour could be either of mail or, more usually, of plate.
Nut
Round pivoted component retained within the stock (tiller) of a crossbow to take the string. It is usually made of solid ivory or…
Partisan
Special type of a polearm. Its blade is wide, long (2-2.5 ft) and sword-like and is also double- edged with lugs on its bottom.…
Salade
See Sallet.
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