cupping vs bloodletting

cupping and bloodletting both are nouns.

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

As nouns, bloodletting is a hypernym of cupping; that is, bloodletting is a word with a broader meaning than cupping:

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

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