Where does “mushmouthed” come from?

mushmouthed (English) comes from English MUSH, from English mushroom, from Middle English muscheron, from Anglo-Norman musherum, from Old French moisseron, from Old French mosse, from Frankish mosa, from Proto-Germanic musą — fly, stinging fly, gnat; moist, damp; swamp,...

mushmouthed (English): Having a muffled or otherwise unclear voice

Definitions

  1. Having a muffled or otherwise unclear voice

Ancestry of “mushmouthed”, step by step

mushmouthed traces back through two separate lines of ancestry.

via English MUSH

StepLanguageWordMeaning
1EnglishMUSHA form of multi-user dungeon, often used for...
2EnglishmushroomAny of the fleshy fruiting bodies of fungi...
3Middle Englishmuscheronmushroom
4Anglo-Normanmusherum
5Old Frenchmoisseron
6Old Frenchmossemoss
7Frankishmosamoss
8Proto-Germanicmusąmoss, bog
9Proto-Indo-Europeanmūs-fly, stinging fly, gnat; moist, damp; swamp,...

via English mouthed

StepLanguageWordMeaning
1EnglishmouthedHaving a specified type of mouth; simple past...
Every word from Proto-Indo-European mūs-