contributory

He contracted Hepatitis C from drug use, which was a contributory factor in his death.

He was a strong athletic young man, in spite of his long hair—or might that have been, as in Samson's case, a contributory cause?

Another contributory source to this oddest freak of my life was the terms on which I had returned to the college.

The expression “contributory place” means a place other than a parish chargeable with special expenses.

But we may well consider these reconstructions as contributory essays and experiments in the general constructive effort.

This warfare finds contributory causes in tribal migrations.