- hindsight (n.)
[hindsight 词源字典]
- by 1841, "backsight of a firearm," from hind (adj.) + sight. Meaning "seeing what has happened" is attested by 1862, American English, (in proverbial "If our foresight was as good as our hindsight, it would be an easy matter to get rich"), probably a formation on the model of foresight.[hindsight etymology, hindsight origin, 英语词源]