Source : Webster's Revised Unabridged Dictionary (1913)

Reassert \Re`as*sert"\, v. t.
   To assert again or anew; to maintain after an omission to do
   so.

         Let us hope . . . we may have a body of authors who
         will reassert our claim to respectability in
         literature.                              --Walsh.

Source : WordNet®

reassert
     v : strengthen or make more firm; "The witnesses confirmed the
         victim's account" [syn: {confirm}]