[よう, you] (n, suf) (1) (pol) Mr, Mrs or Ms; (2) (See お粗末さまでした) used (gen. in fixed expressions) to make words more polite; (3) manner; kind; appearance; (P)#945
The customary abbreviation of Mistress or Missess when used as a title of courtesy, in writing and printing; as, Mrs. Clinton is commonly called by her full name, Hillary Rodham Clinton. [ 1913 Webster ]