The Collaborative International Dictionary of English v.0.48:

Instance \In"stance\, v. t. [imp. & p. p. Instanced; p. pr. &
   vb. n. Instancing.]
   To mention as a case or example; to refer to; to cite; as, to
   instance a fact. --H. Spenser.
   [1913 Webster]

         I shall not instance an abstruse author. --Milton.
   [1913 Webster]