devolvement vs deputation

devolvement and deputation both are nouns.

Word	Noun	Adjective	Verb	Adverb
devolvement	Yes	No	No	No
deputation	Yes	No	No	No

As nouns, deputation is a hypernym of devolvement; that is, deputation is a word with a broader meaning than devolvement:

devolvement: the delegation of authority (especially from a central to a regional government)
deputation: authorizing subordinates to make certain decisions

Other hypernyms of devolvement include delegating, delegation, relegating, relegation.

devolvement (noun)	deputation (noun)
the delegation of authority (especially from a central to a regional government)	authorizing subordinates to make certain decisions
	a group of representatives or delegates