
An unsharpened portion of the blade in front of the quillions. In complex rapier and smallsword hilts, the ricasso is behind the guard, or the forward portion of the hilt.
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http://en.wikipedia.org/wiki/Glossary_of_fencing

A Ricasso is an unsharpened length of blade just above the guard or handle on a knife, dagger, sword, or bayonet. Blades designed this way appear at many periods in history in many parts of the world and date back to at least the Bronze Age; essentially, as long as humans have shaped cutting tools from metals. There were many reasons to make a bla...
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http://en.wikipedia.org/wiki/Ricasso

the unsharpened portion of the sword blade neares the hilt.
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http://www.encyclo.co.uk/local/21591

See sword.
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http://www.encyclo.co.uk/visitor-contributions.php

refers to an unsharpened area at the root of the blade immediately adjacent to the guard and forming a transition between the sharpened portion of the blade and the tang. While late medieval blades, particularly those formed by stock removal (grinding), may have a short ricasso, ricassos are usually a feature of Renaissance and later blades, and sh...
Found on
http://www.vikingsword.com/glossary.html

A blunted area of rectangular section formed in a sword or dagger blade adjacent to the hilt.
Found on
https://www.encyclo.co.uk/local/22686
No exact match found.