Where does “dilater” come from?

dilater (Middle French) comes from Latin dīlātō, from Latin differō, from Latin dis-, from Latin calceus, from Latin calx, from Ancient Greek χάλιξ — small stone, pebble; gravel, rubble.

dilater (Middle French): to spread; to spread out; to cover a larger area...

Definitions

to spread; to spread out; to cover a larger area...

Ancestry of “dilater”, step by step

Step	Language	Word	Meaning
1	Latin	dīlātō	to spread out, extend, dilate
2	Latin	differō	to carry different ways, spread, scatter, disperse, separate
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 →