speck vs stipple

speck

verb
  • To mark with specks; to speckle. 

noun
  • A juniper-flavoured ham originally from Tyrol. 

  • The fat of the hippopotamus. 

  • A very small thing; a particle; a whit. 

  • A tiny spot, especially of dirt etc. 

  • Fat; lard; fat meat. 

  • The blubber of whales or other marine mammals. 

  • A small etheostomoid fish, Etheostoma stigmaeum, common in the eastern United States. 

stipple

verb
  • To use small dots to give the appearance of shading to. 

noun
  • The use of small dots that give the appearance of shading; the dots thus used. 

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