glim (n.)youdaoicibaDictYouDict[glim 词源字典]
in 18c. slang, "a light, candle, lantern" (1700); in 19c. slang "an eye" (1820), probably a back-formation from glimmer (n.) or in some cases glimpse (n.). Related: Glims.[glim etymology, glim origin, 英语词源]