The Collaborative International Dictionary of English v.0.48:

Sapiential \Sa`pi*en"tial\, a. [L. sapientialis.]
   Having or affording wisdom. -- Sa`pi*en"tial*ly, adv.
   [1913 Webster]

         The sapiential books of the Old [Testament]. --Jer.
                                                  Taylor.
   [1913 Webster]