Where does “tāfē-” come from?

tāfē- (Proto-Italic) comes from Proto-Indo-European teh₂bʰeh₁- — to be melting.

Ancestry of “tāfē-”, step by step

Step	Language	Word	Meaning
1	Proto-Indo-European	teh₂bʰeh₁-	to be melting

tāfē- — Etymology, Origin & Word History | Etymology Explorer