N vs l

N

character
  • The fourteenth letter of the English alphabet, called en and written in the Latin script. 

noun
  • north (see also n) 

  • navy 

  • knight 

  • noun 

l

character
  • The twelfth letter of the English alphabet, called el and written in the Latin script. 

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