frizz vs tomentum

frizz

noun
  • A mass of tightly curled or unruly hair. 

verb
  • To form into little burs, knobs, or tufts, as the nap of cloth. 

  • To curl; to make frizzy. 

  • Of hair, to form into a mass of tight curls. 

  • To make (leather) soft and of even thickness by rubbing, as with pumice stone or a blunt instrument. 

  • To fry, cook, or sear with a sizzling noise; to sizzle. 

tomentum

noun
  • A covering of fine, soft hairs; a pubescence. 

  • A mass of filamentous hairs on the leaf of a plant. 

  • A network of fine blood vessels between the pia mater and the cerebral cortex. 

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