K vs i

K

character

  • The eleventh letter of the English alphabet, called kay and written in the Latin script. 

intj

  • Synonym: 'kay 

  • OK 

i

character

  • The ninth letter of the English alphabet, called i and written in the Latin script. 

noun

  • The name of the Latin-script letter I/i. 

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