Squeal

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Middle English (as a verb): imitative. The noun dates from the mid 18th century.

wiktionary

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18th c. (noun), Middle English (verb); of imitative origin.

etymonline

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squeal (v.)

c. 1300, probably of imitative origin, similar to Old Norse skvala "to cry out" (see squall (v.)). The sense of "inform on another" is first recorded 1865. Related: Squealed; squealing. The noun is attested from 1747.