braille vs headlights

braille

adj
  • Of, relating to or written in braille. 

noun
  • A system of writing in which letters and some combinations of letters are represented by raised dots arranged in three rows of two dots each and are read by the blind and partially sighted using the fingertips. 

verb
  • To write in, or convert into, the braille writing system. 

  • to identify something by touch. 

headlights

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