contributing factor

: to give or supply in common with others

: to supply (something, such as an article) for a publication

: to give a part to a common fund or store

: one who acts or transacts business for another: such as

: broker

: one that lends money to producers and dealers (as on the security of accounts receivable)

: to work as a factor

: to resolve into factors

: to include or admit as a factor