Where does “cos” come from?

cos (Old Cornish) comes from Proto-Brythonic kọs, from Latin cāseus, from Proto-Indo-European kwat- — to ferment, become sour; to boil.

cos (Old Cornish): cheese

Definitions

  1. cheese

Ancestry of “cos”, step by step

StepLanguageWordMeaning
1Proto-Brythonickọscheese
2Latincāseuscheese
3Proto-Indo-Europeankwat-to ferment, become sour; to boil
Every word from Proto-Indo-European kwat- →Every word from Latin cāseus →Every word from Proto-Brythonic kọs →