Where does “evacuation” come from?

evacuation (Old French) comes from Latin evacuatio, from Latin -tiō, from Latin dissertātiō, from Latin dissertus, from Latin disserere, from Latin dis-, from Latin calceus, from Latin calx — small stone, pebble; gravel, rubble.

evacuation (Old French): evacuation (of the bowels or bladder)

Definitions

evacuation (of the bowels or bladder)

Ancestry of “evacuation”, step by step

evacuation traces back through two separate lines of ancestry.

via Latin evacuatio

Step	Language	Word	Meaning
1	Latin	evacuatio	emptying (of a vessel), evacuation
2	Latin	-tiō	tion, -ation, -ing
3	Latin	dissertātiō	(spoken) dissertation, discourse, disquisition
4	Latin	dissertus	arranged, disposed; explained
5	Latin	disserere	second-person singular future passive indicative...
6	Latin	dis-	asunder, apart, in two; reversal, removal;...
7	Latin	calceus	shoe
8	Latin	calx	limestone; chalk; the finish line
9	Ancient Greek	χάλιξ	small stone, pebble; gravel, rubble

via Late Latin evacuatio

Step	Language	Word	Meaning
1	Late Latin	evacuatio	emptying , evacuation

Words derived from “evacuation”

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