Where does “cavemouth” come from?

cavemouth (English) comes from English cave, from Middle English cave, from Old French cave, from Latin cava, from Latin cavus, from Proto-Italic kawos, from Proto-Indo-European ḱowh₁ós, from Proto-Indo-European ḱewh₁- — to swell; to be strong.

cavemouth (English): The mouth or entrance of a cave

Definitions

  1. The mouth or entrance of a cave

Ancestry of “cavemouth”, step by step

cavemouth traces back through two separate lines of ancestry.

via English cave

StepLanguageWordMeaning
1EnglishcaveA large, naturally-occurring cavity formed...
2Middle EnglishcaveA cave or cavern
3Old Frenchcave
4Latincavanominative feminine singular of cavus; nominative...
5Latincavushollow, concave; excavated, channeled;...
6Proto-Italickawos
7Proto-Indo-Europeanḱowh₁óshollow
8Proto-Indo-Europeanḱewh₁-to swell; to be strong

via English mouth

StepLanguageWordMeaning
1EnglishmouthThe opening of a creature through which food is...
2Middle EnglishmouþAlternative form of mouth
3Old Englishmūþmouth, opening, door, gate
4Proto-West Germanic*munþmouth
5Proto-Germanicmunþazmouth
6Proto-Indo-Europeanmen-to think, mind; spiritual activity; to stay,...
Every word from Proto-Indo-European ḱewh₁-Every word from Proto-Indo-European ḱowh₁ósEvery word from Proto-Italic kawos