lapel vs plait

lapel

noun
  • Each of the two triangular pieces of cloth on the front of a jacket or coat that are folded back below the throat, leaving a triangular opening between. 

plait

noun
  • A flat fold; a doubling, as of cloth; a pleat. 

  • A braid, as of hair or straw; a plat. 

verb
  • To fold; to double in narrow folds; to pleat 

  • To interweave the strands or locks of; to braid 

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