uniting vs jointure

uniting and jointure both are nouns.

Word	Noun	Adjective	Verb	Adverb
uniting	Yes	No	No	No
jointure	Yes	No	No	No

As nouns, uniting and jointure are synonyms defined as:

Other synonyms of uniting include conjugation, unification, union.

uniting (noun)	jointure (noun)
the act of making or becoming a single unit	the act of making or becoming a single unit
the combination of two or more commercial companies	(law) an estate secured to a prospective wife as a marriage settlement in lieu of a dower