foremost vs posterior

foremost

adj
  • Coming before (all) others in time. 

  • Positioned in front of (all) others in space, most forward. 

  • Closest to the bow. 

  • Of the highest rank or position; of the greatest importance; of the highest priority. 

adv
  • In front, prominently forward. 

  • First in time. 

  • Most importantly. 

posterior

adj
  • Following in order or in time. 

  • Next to, or facing the main stem or axis. 

  • Relating to or denoting presentation of a fetus in which the rear or caudal end is nearest the cervix and emerges first at birth. 

noun
  • The hinder parts of the body. 

  • The probability that a hypothesis is true (calculated by Bayes' theorem). 

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