Encyclopedia of historical weapons - Boss

Also umbo. The round shaped piece of metal at the center of a shield. Protects the hand.

Encyclopedia of historical weapons

From Encyclopedia

Blade
The length of steel that forms a sword.
Foible
Special (Renaissance) term for the upper, weaker part of a blade. Does most of the attacking for its speed and nimbleness.
Ancus
Indian elephant goad; vary greatly in size from about 40 to 120 centimeters in length; shorter ones were used by riders, while the longer versions…
Kapak
Small throwing axe consists of a tanged metal head fitted into a flat wooden handle.
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