Source : Webster's Revised Unabridged Dictionary (1913)

Savvy \Sav"vy\, Savvey \Sav"vey\, n.
   Comprehension; knowledge of affairs; mental grasp. [Slang, U.
   S.]

Savvy \Sav"vy\, Savvey \Sav"vey\, v. t. & i. [Written also
   {savey}.] [Sp. saber to know, sabe usted do you know?]
   To understand; to comprehend; know. [Slang, U. S.]