Purr
来自Big Physics
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early 17th century: imitative.
wiktionary
Onomatopoeic.
etymonline
purr (v.)
"uttering a low, murmuring sound expressive of satisfaction or pleasure, as a cat," 1610s, of imitative origin. Related: Purred; purring. As a noun, "sound made by a purring cat," from c. 1600. A similar imitative word, curr "make a low murmuring sound, purr" (1670s), was used of doves and cats.
