Where does “cave” come from?

cave (Old French) comes 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.

Ancestry of “cave”, step by step

StepLanguageWordMeaning
1Latincavanominative feminine singular of cavus; nominative...
2Latincavushollow, concave; excavated, channeled;...
3Proto-Italickawos—
4Proto-Indo-Europeanḱowh₁óshollow
5Proto-Indo-Europeanḱewh₁-to swell; to be strong

Words derived from “cave”

Every word from Proto-Indo-European ḱewh₁- →Every word from Proto-Indo-European ḱowh₁ós →Every word from Proto-Italic kawos →