cause vs solicit

cause is a noun but solicit is not a noun.

Word	Noun	Adjective	Verb	Adverb
cause	Yes	No	Yes	No
solicit	No	No	Yes	No

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

cause: cause to do; cause to act in a specified manner
solicit: incite, move, or persuade to some act of lawlessness or insubordination

Other hyponyms of cause include decide, persuade, bring, encourage, let, lead, inspire, instigate, prompt, suborn, compel, obligate, oblige.

cause (noun)	solicit (noun)
any entity that produces an effect or is responsible for events or results
a comprehensive term for any proceeding in a court of law whereby an individual seeks a legal remedy
a series of actions advancing a principle or tending toward a particular end
a justification for something existing or happening
events that provide the generative force that is the origin of something

cause (verb)	solicit (verb)
cause to do; cause to act in a specified manner	make a solicitation or entreaty for something; request urgently or persistently
give rise to; cause to happen or occur, not always intentionally	approach with an offer of sexual favors
	incite, move, or persuade to some act of lawlessness or insubordination
	make a solicitation or petition for something desired
	make amorous advances towards