invigorate vs encourage

invigorate and encourage both are verbs.

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

As verbs, encourage is a hyponym of invigorate; that is, encourage is a word with a more specific, narrower meaning than invigorate:

invigorate (verb)	encourage (verb)
impart vigor, strength, or vitality to	spur on
make lively	inspire with confidence; give hope or courage to
give life or energy to	contribute to the progress or growth of
heighten or intensify