Source : Webster's Revised Unabridged Dictionary (1913)

Metrify \Met"ri*fy\, v. i. [L. metrum meter + -fy: cf. F.
   m['e]trifier.]
   To make verse. [R.] --Skelton.

Source : WordNet®

metrify
     v 1: compose in poetic meter; "The bard metrified his poems very
          precisely"
     2: convert from a non-metric to the metric system [syn: {metricize},
         {metricise}, {metricate}]
     [also: {metrified}]