first choice vs optimacy

first choice

noun
  • The most suitable and most optimal choice. 

  • The prime cut. 

  • The one with the highest ranking. 

optimacy

noun
  • a most favourable condition or state 

  • the nobility, collectively 

  • government by the nobility 

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