acceptation vs espousal

acceptation and espousal both are nouns.

Word	Noun	Adjective	Verb	Adverb
acceptation	Yes	No	No	No
espousal	Yes	No	No	No

As nouns, acceptation and espousal are synonyms defined as:

acceptation and espousal: the act of accepting with approval; favorable reception

Other synonyms of acceptation include acceptance, adoption.

acceptation (noun)	espousal (noun)
the act of accepting with approval; favorable reception	the act of accepting with approval; favorable reception
the accepted meaning of a word	archaic terms for a wedding or wedding feast
acceptance as true or valid	the act of becoming betrothed or engaged