amigo vs oppo

amigo

noun
  • A friend. 

  • Mexican. 

  • A native of the Philippines who was friendly toward the Spanish. 

oppo

noun
  • A friend, associate or colleague. 

  • Research into one's opponent's family, friends, and past, which aims to uncover activities or interests which embarrass or discredit them. 

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