Where does “disjuntivo” come from?

disjuntivo (Portuguese) comes from Latin disiunctivus, from Latin disiungō, from Latin dis-, from Latin calceus, from Latin calx, from Ancient Greek χάλιξ — small stone, pebble; gravel, rubble.

disjuntivo (Portuguese): disjunctive that which disunites or separates

Definitions

disjunctive that which disunites or separates

Ancestry of “disjuntivo”, step by step

Step	Language	Word	Meaning
1	Latin	disiunctivus	placed in opposition; disjunctive
2	Latin	disiungō	to disjoin, disunite, separate, part, divide
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 →