Greenbacks
The Cyclopedic Law Dictionary · Walter A. Shumaker and George Foster Longsdorf; ed. James C. Cahill · 1922
The Cyclopedic Law Dictionary
The term greenback Is the popular and almost exclusive name applied to all United States treasury issues, and is not applied to any other species of paper currency.
23 Ind. 23. 6REEVE, GREF. (Law Fr.) Grievous; severe.