Where does “desfiement” come from?

desfiement (Old French) comes from Old French desfier, from Vulgar Latin disfidare, from Latin dis-, from Latin calceus, from Latin calx, from Ancient Greek χάλιξ — small stone, pebble; gravel, rubble.

desfiement (Old French): challenge

Definitions

challenge

Ancestry of “desfiement”, step by step

Step	Language	Word	Meaning
1	Old French	desfier	to defy
2	Vulgar Latin	disfidare	renounce one's faith
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 →