provision vs purveyance

provision and purveyance both are nouns.

Word	Noun	Adjective	Verb	Adverb
provision	Yes	No	Yes	No
purveyance	Yes	No	No	No

As nouns, purveyance is a hyponym of provision; that is, purveyance is a word with a more specific, narrower meaning than provision:

provision (noun)	purveyance (noun)
the activity of supplying or providing something	the act of supplying something
the cognitive process of thinking about what you will do in the event of something happening
a stipulated condition
a store or supply of something (especially of food or clothing or arms)

provision (verb)	purveyance (verb)
supply with provisions