usury (Hebrew. nashak), is. charge on money.
increase (Hebrew. tarbith or marbith) is. charge on goods. See notes on Leviticus 25:7 with Leviticus 26:4. These were the definitions of the authorities of the second temple.
Related Commentaries of Leviticus 25:36
Leviticus 25:36
36 Take thou no usury of him, or increase: but fear thy God; that thy brother may live with thee.