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

Foible
Special (Renaissance) term for the upper, weaker part of a blade. Does most of the attacking for its speed and nimbleness.
Harquebus
See arquebus.
Prime
See Forte'.
Riser
Opposite of a fuller. Makes a sword more rigid yet with a flixible spine.
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