rehash (v.)youdaoicibaDictYouDict[rehash 词源字典]
1822, from re- "again" + hash (v.). Related: Rehashed; rehashing.[rehash etymology, rehash origin, 英语词源]
rehash (n.)youdaoicibaDictYouDict
1849, from rehash (v.); "old material worked up anew," usually of literary productions.