autonomous vs several

autonomous

adj
  • Acting on one's own or independently; of a child, acting without being governed by parental or guardian rules. 

  • Self-governing. Intelligent, sentient, self-aware, thinking, feeling, governing independently. 

  • Used with no subject, indicating an unknown or unspecified agent; used in similar situations as the passive in English (the difference being that the theme in the English passive construction is the subject, while in the Celtic autonomous construction the theme is the object and there is no subject). 

several

adj
  • Separable, capable of being treated separately. 

  • A number of different; various. 

det
  • Consisting of a number more than two but not very many. 

adv
  • By itself; severally. 

noun
  • Each particular taken singly; an item; a detail; an individual. 

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