abase vs abash

abase

verb
  • 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. 

abash

verb
  • To make ashamed; to embarrass; to destroy the self-possession of, as by exciting suddenly a consciousness of guilt, mistake, or inferiority; to disconcert; to discomfit. 

How often have the words abase and abash occurred in a corpus of books? (source: Google Ngram Viewer )