courter vs darling

courter

noun
  • One who courts; one who plays the lover, or solicits in marriage. 

darling

noun
  • A kind or sweet person; sweetheart. 

  • An affectionate term of address. 

  • A person or thing very popular with a certain group. 

  • A person who is dear to one. 

adj
  • Dear; cherished. 

  • charming 

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