Where does “disgregamento” come from?

disgregamento (Italian) comes from Italian disgregare, from Latin disgregō, from Latin dis-, from Latin calceus, from Latin calx, from Ancient Greek χάλιξ — small stone, pebble; gravel, rubble.

disgregamento (Italian): disintegration, breakup

Definitions

disintegration, breakup

Ancestry of “disgregamento”, step by step

Step	Language	Word	Meaning
1	Italian	disgregare	to break up, disintegrate
2	Latin	disgregō	to separate, 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 →