Where does “ydropsy” come from?

ydropsy (Middle English) comes from Old French ydropisie, from Late Latin hydropisia, from Latin hydropisis, from Ancient Greek ὕδρωψ, from Ancient Greek ὕδωρ, from Proto-Hellenic *údōr — water.

Ancestry of “ydropsy”, step by step

ydropsy traces back through two separate lines of ancestry.

via Old French ydropisie

Step	Language	Word	Meaning
1	Old French	ydropisie	swelling of the abdomen due to serum
2	Late Latin	hydropisia	—
3	Latin	hydropisis	—
4	Ancient Greek	ὕδρωψ	edema
5	Ancient Greek	ὕδωρ	water; rainwater, rain; sweat
6	Proto-Hellenic	*údōr	water

via Old French idropsie

Step	Language	Word	Meaning
1	Old French	idropsie	—

Every word from Proto-Hellenic *údōr →Every word from Ancient Greek ὕδωρ →Every word from Ancient Greek ὕδρωψ →