Pandarus vs go-between

Pandarus

name
  • An archer on the side of Troy in the Trojan War who precipitated the war by breaking a truce. 

go-between

noun
  • An intermediary or middleman. 

  • A shogi piece, used in chu shogi and larger shogi variants, that can move one step straight forward or straight backwards. 

How often have the words Pandarus and go-between occurred in a corpus of books? (source: Google Ngram Viewer )