nourishment vs tending

nourishment and tending both are nouns.

Word	Noun	Adjective	Verb	Adverb
nourishment	Yes	No	No	No
tending	Yes	Yes	No	No

As nouns, tending is a hypernym of nourishment; that is, tending is a word with a broader meaning than nourishment:

nourishment: the act of nourishing
tending: the work of providing treatment for or attending to someone or something

Other hypernyms of nourishment include aid, attention, care.

nourishment (noun)	tending (noun)
the act of nourishing	the work of providing treatment for or attending to someone or something
a source of materials to nourish the body

nourishment (adjective)	tending (adjective)
	(usually followed by `to') naturally disposed toward