bedeck vs ornament

bedeck is not a noun while ornament is a noun.

Word	Noun	Adjective	Verb	Adverb
bedeck	No	No	Yes	No
ornament	Yes	No	Yes	No

As verbs, ornament is a hypernym of bedeck; that is, ornament is a word with a broader meaning than bedeck:

Other hypernyms of bedeck include adorn, beautify, decorate, embellish, grace.

bedeck (noun)	ornament (noun)
	something used to beautify

bedeck (verb)	ornament (verb)
decorate	make more attractive by adding ornament, colour, etc.
	be an ornament to