Source : Webster's Revised Unabridged Dictionary (1913)

Legitimatize \Le*git"i*ma*tize\ (-t[imac]z), v. t.
   To legitimate.

Source : WordNet®

legitimatize
     v : make legal; "Marijuana should be legalized" [syn: {legalize},
          {legalise}, {decriminalize}, {decriminalise}, {legitimize},
          {legitimise}, {legitimate}, {legitimatise}] [ant: {outlaw},
          {outlaw}, {outlaw}, {outlaw}]