masterful vs masterly

masterful

adj
  • In the manner of a master; very skillful. 

  • Having or showing the qualities of a master vis-a-vis a dependent or subordinate; authoritative; domineering. 

  • Of or pertaining to the manner of a master of an art, technique, profession, or craft; masterly. 

masterly

adj
  • Executed in the manner of a master; showing competence and skill; masterful. 

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