Where does “cawslyd” come from?

cawslyd (Welsh) comes from Welsh caws, from Middle Welsh caws, from Proto-Brythonic kọs, from Latin cāseus, from Proto-Indo-European kwat- — to ferment, become sour; to boil.

cawslyd (Welsh): cheesy

Definitions

cheesy

Ancestry of “cawslyd”, step by step

Step	Language	Word	Meaning
1	Welsh	caws	cheese; curds; a cheese
2	Middle Welsh	caws	—
3	Proto-Brythonic	kọs	cheese
4	Latin	cāseus	cheese
5	Proto-Indo-European	kwat-	to ferment, become sour; to boil

Every word from Proto-Indo-European kwat- →Every word from Latin cāseus →Every word from Proto-Brythonic kọs →