peep 词源(Etymology) - 趣词词源[英文版]

peep (v.1)[peep 词源字典]: "glance" (especially through a small opening), mid-15c., perhaps alteration of Middle English piken (see peek (v.)). Peeping Tom "a curious prying fellow" [Grose] is from 1796 (see Godiva).[peep etymology, peep origin, 英语词源]
peep (v.2): "make a short chirp," c. 1400, probably altered from pipen (mid-13c.), ultimately imitative (compare Latin pipare, French pepier, German piepen, Lithuanian pypti, Czech pipati, Greek pipos).
peep (n.2): "short chirp," early 15c., from peep (v.2); meaning "slightest sound or utterance" (usually in a negative context) is attested from 1903. Meaning "young chicken" is from 1680s. The marshmallow peeps confection are said to date from 1950s.
peep (n.1): 1520s, first in sense found in peep of day, from peep (v.1); meaning "a furtive glance" is first recorded 1730.