Source : Webster's Revised Unabridged Dictionary (1913)

Agnize \Ag*nize"\ ([a^]g*n[imac]z"), v. t. [Formed like
   recognize, fr. L. agnoscere.]
   To recognize; to acknowledge. [Archaic]

         I do agnize a natural and prompt alacrity. --Shak.

Source : WordNet®

agnize
     v : be fully aware or cognizant of [syn: {recognize}, {recognise},
          {realize}, {realise}, {agnise}]