couvade vs usage

couvade and usage both are nouns.

Word	Noun	Adjective	Verb	Adverb
couvade	Yes	No	No	No
usage	Yes	No	No	No

As nouns, usage is a hypernym of couvade; that is, usage is a word with a broader meaning than couvade:

couvade: a custom among some peoples whereby the husband of a pregnant wife is put to bed at the time of bearing the child
usage: accepted or habitual practice

Other hypernyms of couvade include custom, usance.

couvade (noun)	usage (noun)
a custom among some peoples whereby the husband of a pregnant wife is put to bed at the time of bearing the child	the act of using
	accepted or habitual practice
	the customary manner in which a language (or a form of a language) is spoken or written