Where does “cawf” come from?

cawf (Scots) comes from Middle English calf, from Old English ċealf, from Proto-West Germanic kalb, from Proto-Germanic kalbaz, from Proto-Indo-European gʷolbʰo — womb, animal young.

Ancestry of “cawf”, step by step

Step	Language	Word	Meaning
1	Middle English	calf	calf; A representation of a calf; something that...
2	Old English	ċealf	calf (young cow)
3	Proto-West Germanic	kalb	calf
4	Proto-Germanic	kalbaz	calf
5	Proto-Indo-European	gʷolbʰo	womb, animal young

Every word from Proto-Indo-European gʷolbʰo →Every word from Proto-Germanic kalbaz →Every word from Proto-West Germanic kalb →