Rehash

Verb

 * 1)  To rework old material (physical material, ideas, documents etc), redo some work, with some variations.
 * Today's parliamentary session only rehashed last week's arguments.
 * The CEO of the company only rehashed a speech for the news conference.
 * The general rehashed plans for the war.

Noun

 * 1) Something reworked, or made up from old materials.
 * He wrote a bad rehash of an earlier essay.

Thesaurus
battologize, copy, critique, dwelling upon, elaboration, fill, give an encore, go over, go through, going over, iterate, iteration, pad, paraphrase, practice, practicing, reaffirm, reaffirmation, rearrange, rearrangement, reassert, recap, recapitulate, recapitulation, recital, recite, recount, recountal, recounting, redo, redoing, rehearsal, rehearse, reissue, reiterate, reiteration, rephrase, reprint, reshuffle, reshuffling, restate, restatement, resume, retail, retell, retelling, reuse, review, reword, rewording, rework, run over, say over, say over again, sum up, summarize, summary, summing up, tautologize