eyelash vs five o'clock shadow

eyelash

noun
  • one of the hairs which grow along the edge of eyelids 

five o'clock shadow

noun
  • A beard growth visible late in the day on the face of a man with facial hair growth that was clean-shaven in the morning. 

How often have the words eyelash and five o'clock shadow occurred in a corpus of books? (source: Google Ngram Viewer )