v (transitive|archaic) To lower physically or depress; to stoop; to throw or cast down; as, to abase the eye. (defdate|First attested from around (1350 to 1470))
v (transitive) To lower, as in rank, office, condition in life, so as to hurt feelings or cause pain; to depress; to humiliate; to humble; to degrade. (defdate|First attested from around (1350 to 1470))
v (transitive|obsolete) To lower in value, in particular as altering the content of alloys in coins.(defdate|Attested from the mid 16th century until the mid 18th century.)