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peeper (n.)
[peeper 词源字典]
1650s, "one who peeps," agent noun from
peep
(v.1). Slang meaning "eye" is c. 1700. From 1590s as "young chicken" and 1857 as "tree frog" (American English), both from
peep
(v.2).
[peeper etymology, peeper origin, 英语词源]
[peeper 词源字典]