OPPRESS', L. appressus, from opprimo ob and premo, to press.

1. To load or burden with unreasonable impositions to treat with unjust severity, rigor or hardship as, to oppress a nation with taxes or contributions to oppress one by compelling him to perform unreasonable service.
2. To overpower to overburden as, to be oppressed with grief.
3. to sit or lie heavy on as, excess of good oppresses the stomach.