Where does “descambiar” come from?

descambiar (Asturian) comes from Asturian des-, from Old Leonese des-, from Latin dis-, from Latin calceus, from Latin calx, from Ancient Greek χάλιξ — small stone, pebble; gravel, rubble.

descambiar (Asturian): to return, take back (an item that was bought)

Definitions

to return, take back (an item that was bought)

Ancestry of “descambiar”, step by step

Step	Language	Word	Meaning
1	Asturian	des-	dis
2	Old Leonese	des-	—
3	Latin	dis-	asunder, apart, in two; reversal, removal;...
4	Latin	calceus	shoe
5	Latin	calx	limestone; chalk; the finish line
6	Ancient Greek	χάλιξ	small stone, pebble; gravel, rubble

Every word from Ancient Greek χάλιξ →Every word from Latin dis- →Every word from Latin calx →