Where does “vals” come from?

vals (Middle High German) comes from Old French fals, from Latin falsus, from Latin fallō, from Proto-Indo-European ǵʰwel- — to bend; to lie, deceive.

Ancestry of “vals”, step by step

Step	Language	Word	Meaning
1	Old French	fals	false
2	Latin	falsus	deceived, tricked, cheated, disappointed, having...
3	Latin	fallō	to deceive, beguile, trick, cheat, delude, ensnare, disappoint
4	Proto-Indo-European	ǵʰwel-	to bend; to lie, deceive

Every word from Proto-Indo-European ǵʰwel- →Every word from Latin fallō →Every word from Latin falsus →