- reduplicate (v.)[reduplicate 词源字典]
- 1560s, from Medieval Latin reduplicatus, past participle of reduplicare "to redouble," from re- "back, again" (see re-) + Latin duplicare "to double" (see duplicate (adj.)). Related: Reduplicated; reduplicating; reduplicative.[reduplicate etymology, reduplicate origin, 英语词源]