uprise vs well up

uprise and well up both are verbs.

Word	Noun	Adjective	Verb	Adverb
uprise	No	No	Yes	No
well up	No	No	Yes	No

As verbs, well up is a hyponym of uprise; that is, well up is a word with a more specific, narrower meaning than uprise:

Other hyponyms of uprise include resurge, come forth, emerge, come, follow, swell, head.

uprise (verb)	well up (verb)
get up and out of bed	come up (as of feelings and thoughts, or other ephemeral things)
return from the dead
move upward
come up, of celestial bodies
rise to one's feet
rise up as in fear
ascend as a sound
come into existence; take on form or shape