mump

Perhaps borrowed through obsolete Dutch mompen (“to cheat, swindle, deceive”), according to Kroonen, a derivative of Proto-Germanic *mump- (“to stain”), perhaps from Proto-Indo-European *mm̥bʰ-neh₂- Also akin to German mimpfeln (“to mumble”), Icelandic mumpa (“to take into the mouth”). See also English mum.

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