Docking vs Rod

Docking

name
  • A habitational surname from Old English. 

  • A village in King's Lynn and West Norfolk district, Norfolk, England (OS grid ref TF765370). 

Rod

name
  • A nickname for the male given names Rodney and Roderick. 

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