verb

• (transitive) To lower, as in condition in life, office, rank, etc., so as to cause pain or hurt feelings; to degrade, to depress, to humble, to humiliate.
  "For whoſoeuer exalteth himſelfe ſhalbe abaſed: and hee that humbleth himſelfe, ſhalbe exalted."
• (transitive, archaic) To lower physically; to depress; to cast or throw down; to stoop.
  "to abase the eye"
• (transitive, obsolete) To lower in value, in particular by altering the content of alloys in coins; to debase.
  "Though in the nature thereof, that with which a purer metal is mixed, be not base; yet, it abases the purer metal. […] [T]hough silver be a precious metal, yet it abases gold. Grace, and peace, and faith, are precious parts of our treasure here; yet, if we mingle them, that is, compare them with the joys, and glory of heaven; […] we abase, and over-alloy these joys, and that glory."