back down vs resile

back down and resile both are verbs.

Word	Noun	Adjective	Verb	Adverb
back down	No	No	Yes	No
resile	No	No	Yes	No

As verbs, resile is a hyponym of back down; that is, resile is a word with a more specific, narrower meaning than back down:

back down (verb)	resile (verb)
move backwards from a certain position	return to the original position or state after being stretched or compressed
remove oneself from an obligation	formally reject or disavow a formerly held belief, usually under pressure
	spring back; spring away from an impact
	pull out from an agreement, contract, statement, etc.