cummerbund vs waistcloth

cummerbund and waistcloth both are nouns.

Word	Noun	Adjective	Verb	Adverb
cummerbund	Yes	No	No	No
waistcloth	Yes	No	No	No

As nouns, waistcloth is a hypernym of cummerbund; that is, waistcloth is a word with a broader meaning than cummerbund:

cummerbund: a broad pleated sash worn as formal dress with a tuxedo
waistcloth: a band of material around the waist that strengthens a skirt or trousers

Other hypernyms of cummerbund include cincture, girdle, sash, waistband.

cummerbund (noun)	waistcloth (noun)
a broad pleated sash worn as formal dress with a tuxedo	a band of material around the waist that strengthens a skirt or trousers