Where does “fingō” come from?

fingō (Latin) comes from Proto-Indo-European dʰeyǵʰ- — to knead; to form, to shape.

Ancestry of “fingō”, step by step

Step	Language	Word	Meaning
1	Proto-Indo-European	dʰeyǵʰ-	to knead; to form, to shape

fingō — Etymology, Origin & Word History | Etymology Explorer