In sword defence was one of the four guards, and also a position in fencing.
quarte and quarti, v. quartus. ...
A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.
·noun ·same·as 2d Carte. II. Quarte ·noun A position in thrusting or parrying, with the inside of t...
Webster's Dictionary of the English Language