Etymology
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squelch (v.)
1620s, "to fall, drop, or stomp (on something soft) with crushing force," possibly imitative of sound made in the process. The figurative sense of "suppress completely" is first recorded 1864. Related: Squelched; squelching.
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quelch (v.)

1650s, a shortening of squelch, perhaps influenced by quench. Related: Quelched; quelching.

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