Backsword is a denomination of any type of
sword, generally of
European origin, that has only one
edge, with the back of the sword often being the thickest part of the blade.
Backswords are generally curved in order to make slicing/chopping action easier, at some expense of thrusting power.
Swords of this type include for example the sabre, various falchions and the scramasax.
All Wikipedia text
is available under the
terms of the GNU Free Documentation License