The Collaborative International Dictionary of English v.0.48:

Versant \Ver"sant\, a. [L. versans, p. pr. of versare to turn
   about frequently, to turn over in the mind, to meditate. See
   Versatile.]
   Familiar; conversant. [R.]
   [1913 Webster]

         Men not versant with courts of justice.  --Sydney
                                                  Smith.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Versant \Ver"sant\, n. [F.]
   The slope of a side of a mountain chain; hence, the general
   slope of a country; aspect.
   [1913 Webster]

WordNet (r) 3.0 (2006):

versant
    n 1: the side or slope of a mountain; "conifer forests cover the
         eastern versant" [syn: mountainside, versant]