overmuch vs superfluously

overmuch

adv
  • Too much; overly much 

adj
  • Excessive. 

det
  • Very much; too much 

noun
  • An excessive amount; too much. 

superfluously

adv
  • In a superfluous manner. 

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