Where does “desmoronamiento” come from?

desmoronamiento (Spanish) comes from Spanish desmoronar, from Old Spanish desboronar, from Old Spanish des-, from Latin dis-, from Latin calceus, from Latin calx, from Ancient Greek χάλιξ — small stone, pebble; gravel, rubble.

desmoronamiento (Spanish): collapse, breakdown

Definitions

collapse, breakdown

Ancestry of “desmoronamiento”, step by step

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

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