sell up vs put away

sell up and put away both are verbs.

Word	Noun	Adjective	Verb	Adverb
sell up	No	No	Yes	No
put away	No	No	Yes	No

As verbs, put away is a hypernym of sell up; that is, put away is a word with a broader meaning than sell up:

sell up (verb)	put away (verb)
sell or get rid of all one's merchandise	turn away from and put aside, perhaps temporarily
	eat up; usually refers to a considerable quantity of food
	kill gently, as with an injection
	place in a place where something cannot be removed or someone cannot escape
	stop using
	throw or cast away
	lock up or confine, in or as in a jail