nursemaid vs wetnurse

nursemaid and wetnurse both are nouns.

Word	Noun	Adjective	Verb	Adverb
nursemaid	Yes	No	No	No
wetnurse	Yes	No	No	No

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

Other hyponyms of nursemaid include dry nurse, mammy, amah, wet-nurse, wet nurse.

nursemaid (noun)	wetnurse (noun)
a woman who is the custodian of children	a woman hired to suckle a child of someone else