Usura

pi usurse, I In the civil law. Money given for the use of money; interest, the highest lawful rate of which, before the time of Justinian, was twelve per cent per annum. Usnra manifesta: open usury. Usura maritima: maritime interest. Usura velata: veiled usury; usury where the interest was added to the principal of the obligation given for the loan.

In old English law

Interest, or usury, as it was called. Usnra dicitur quia datur pro usu seris: usury is so called because it is given for the use of money. Usura est commodum certuin quod propter usura rei inutuatse recipitur; sed secundario spirare de aliqna retributione, ad voluntatem ejus qui mutnatns est, hoc non est Titiosum: usury is a certain benefit which is received for the use of a thing lent; but to have an understanding [literally, to breathe or whisper] in an incidental way, about some compensation to be made at the pleasure of the borrower, is not unlawful.