ban on interest, n.All

The Ban on interest (n.) made ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠the Church rich: forbidden to charge interest, lenders took land in pledge — and the monasteries took most of it into mortmain.