adjure vs burden

adjure is not a noun while burden is a noun.

Word	Noun	Adjective	Verb	Adverb
adjure	No	No	Yes	No
burden	Yes	No	Yes	No

As verbs, burden is a hypernym of adjure; that is, burden is a word with a broader meaning than adjure:

Other hypernyms of adjure include charge, saddle.

adjure (noun)	burden (noun)
	weight to be borne or conveyed
	the central idea that is expanded in a document or discourse
	an onerous or difficult concern
	the central meaning or theme of a speech or literary work

adjure (verb)	burden (verb)
command solemnly	impose a task upon, assign a responsibility to
ask for or request earnestly	weight down with a load