conviction vs theism

conviction

noun
  • A firmly held belief. 

  • A judgement of guilt in a court of law. 

  • The state of being wholly convinced. 

  • The state of being found or proved guilty. 

theism

noun
  • Belief in the existence of at least one deity. 

  • Belief in the existence of a personal creator god, goddess, gods and/or goddesses present and active in the governance and organization of the world and the universe. The God may be known by or through revelation. 

  • A morbid condition resulting from excessive consumption of tea. 

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