written promise

It is a civil contract bound by word of mouth, and written promise, under witness of the church.

A few days after, the old man who had saved the young king came, bringing with him his written promise.

And give me your written promise to give it me back as soon as I ask for it.

He had besides given a written promise to defend the Church of Rome, and that not against the Lombards only.

The thing is impossible; I would not mind giving you a written promise to pay you 10,000 if ever he gets in.