Where does “disiectans” come from?

disiectans (Latin) comes from Latin disiecto, from Latin disiciō, from Latin dis-, from Latin calceus, from Latin calx, from Ancient Greek χάλιξ — small stone, pebble; gravel, rubble.

Definitions

Ancestry of “disiectans”, step by step

Step	Language	Word	Meaning
1	Latin	disiecto	I scatter, disperse; dative/ablative...
2	Latin	disiciō	to throw or drive asunder; scatter, disperse, break up, divide; dishevel; spread
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 →