Where does “causa” come from?

causa (Sicilian) comes from Occitan cauça, from Vulgar Latin calcea, from Latin calceus, from Latin calx, from Ancient Greek χάλιξ — small stone, pebble; gravel, rubble.

causa (Sicilian): Any garment worn from the feet up, possibly reaching to the waist

Definitions

Any garment worn from the feet up, possibly reaching to the waist

Ancestry of “causa”, step by step

causa traces back through two separate lines of ancestry.

via Occitan cauça

Step	Language	Word	Meaning
1	Occitan	cauça	—
2	Vulgar Latin	calcea	garment covering foot and leg
3	Latin	calceus	shoe
4	Latin	calx	limestone; chalk; the finish line
5	Ancient Greek	χάλιξ	small stone, pebble; gravel, rubble

via Latin causa

Step	Language	Word	Meaning
1	Latin	causa	cause, reason; case, claim, contention; motive,...
2	Old Latin	caussa	cause, reason, purpose; case, claim; Archaic form...
3	Proto-Indo-European	kawd-teh₂	—

Every word from Ancient Greek χάλιξ →