What is "cavezon"

Cavesson \Cav"es*son\, Cavezon \Cav"e*zon\, n. [F. cave[,c]on, augm. fr. LL. capitium a head covering hood, fr. L. caput head. Cf. Caberzon.] (Man.) A kind of noseband used in breaking and training horses. [Written also caveson, causson.]
--White. [1913 Webster] ||

n. (alternative form of cavesson English)