Origin of rehashre- + hash
transitive verbre·hashed, re·hash·ing, re·hash·es
- To bring forth again in another form without significant alteration: a book that rehashes old ideas.
- To discuss (the details of a past event).
(third-person singular simple present rehashes, present participle rehashing, simple past and past participle rehashed)
- Something reworked, or made up from old materials.
- He wrote a bad rehash of an earlier essay.