bloodletting vs cupping

bloodletting and cupping both are nouns.

Word	Noun	Adjective	Verb	Adverb
bloodletting	Yes	No	No	No
cupping	Yes	No	No	No

As nouns, cupping is a hyponym of bloodletting; that is, cupping is a word with a more specific, narrower meaning than bloodletting:

bloodletting: formerly used as a treatment to reduce excess blood (one of the four humors of medieval medicine)
cupping: a treatment in which evacuated cups are applied to the skin to draw blood through the surface

Other hyponyms of bloodletting include phlebotomy, venesection.

bloodletting (noun)	cupping (noun)
formerly used as a treatment to reduce excess blood (one of the four humors of medieval medicine)	a treatment in which evacuated cups are applied to the skin to draw blood through the surface
indiscriminate slaughter