RichThesaurus
coadjuvant
vs
obliging
coadjuvant
noun
An adjuvant.
adj
cooperating
obliging
noun
The imposition of an obligation.
adj
Happy and ready to do favours for others.
How often have the words
coadjuvant
and
obliging
occurred in a corpus of books?
(source:
Google Ngram Viewer
)