cast down vs discourage

cast down and discourage both are verbs.

Word	Noun	Adjective	Verb	Adverb
cast down	No	No	Yes	No
discourage	No	No	Yes	No

As verbs, discourage is a hypernym of cast down; that is, discourage is a word with a broader meaning than cast down:

cast down: lower someone's spirits; make downhearted
discourage: deprive of courage or hope; take away hope from; cause to feel discouraged

cast down (verb)	discourage (verb)
lower someone's spirits; make downhearted	try to prevent; show opposition to
	advise or counsel in terms of someone's behavior
	deprive of courage or hope; take away hope from; cause to feel discouraged