hydrops vs dropsy

hydrops and dropsy both are nouns.

Word	Noun	Adjective	Verb	Adverb
hydrops	Yes	No	No	No
dropsy	Yes	No	No	No

As nouns, hydrops and dropsy are synonyms defined as:

hydrops and dropsy: swelling from excessive accumulation of watery fluid in cells, tissues, or serous cavities

Other synonyms of hydrops include edema, oedema.

hydrops (noun)	dropsy (noun)
swelling from excessive accumulation of watery fluid in cells, tissues, or serous cavities	swelling from excessive accumulation of watery fluid in cells, tissues, or serous cavities