retrospect (n.)youdaoicibaDictYouDict[retrospect 词源字典]
c. 1600, "a regard or reference" (to something), from Latin retrospectum, past participle of retrospicere "look back," from retro- "back" (see retro-) + specere "look at" (see scope (n.1)). Meaning "survey of past events" is from 1660s.[retrospect etymology, retrospect origin, 英语词源]