elaborate vs work up

elaborate is an adjective but work up is not an adjective.

Word	Noun	Adjective	Verb	Adverb
elaborate	No	Yes	Yes	No
work up	No	No	Yes	No

elaborate (adjective)	work up (adjective)
developed or executed with care and in minute detail
marked by complexity and richness of detail

elaborate (verb)	work up (verb)
make more complex, intricate, or richer	develop
work out in detail	form or accumulate steadily
add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing	come up with
produce from basic elements or sources; change into a more developed product	bolster or strengthen