retroactive的词源
英文词源
- retroactive (adj.)
- 1610s, from French rétroactif (16c.) "casting or relating back," from Latin retroact-, past participle stem of retroagere "drive or turn back," from retro- "back" (see retro-) + agere "to drive, set in motion" (see act (v.)). Related: Retroactively.
中文词源
retro-,向后,往回,active,有效力的。
该词的英语词源请访问找单词词源英文版:retroactive 词源,retroactive 含义。