nurture vs encourage

nurture is a noun but encourage is not a noun.

Word	Noun	Adjective	Verb	Adverb
nurture	Yes	No	Yes	No
encourage	No	No	Yes	No

As verbs, encourage is a hypernym of nurture; that is, encourage is a word with a broader meaning than nurture:

nurture (noun)	encourage (noun)
helping someone grow up to be an accepted member of the community
the properties acquired as a consequence of the way you were treated as a child

nurture (verb)	encourage (verb)
help develop, help grow	spur on
provide with nourishment	inspire with confidence; give hope or courage to
look after a child until it is an adult	contribute to the progress or growth of