a priori vs fuzzy

a priori

adj
  • Presumed without analysis. 

  • Self-evident, intuitively obvious. 

  • Based on hypothesis and theory rather than experiment or empirical evidence. 

  • Developed entirely from scratch, without deriving it from existing languages. 

adv
  • In a way based on theoretical deduction rather than empirical observation. 

fuzzy

adj
  • Not clear; unfocused. 

  • Vague or imprecise. 

  • Covered with fuzz or a large number of tiny loose fibres like a carpet or many stuffed animals 

  • Employing or relating to fuzzy logic. 

noun
  • A person, especially a college student, interested in humanities or social sciences, as opposed to one interested in mathematics, science, or engineering. 

  • A very small piece of plush material. 

  • Something covered with fuzz or hair, as an animal or plush toy. 

  • A soldier with the rank of private. 

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