mudlark vs scamp

mudlark

noun
  • A child who plays in the mud; a child that spends most of its time in the streets, a street urchin. 

  • A soldier of the Royal Engineers. 

  • Any of various birds that are found in muddy places or build their nests with mud, especially Anthus petrosus and Alauda arvensis. 

  • The Grallina cyanoleuca that builds its nest with mud into a bowl-like shape. 

  • A racehorse that performs well on muddy or wet tracks. 

verb
  • To scavenge in river or harbor mud for items of value. 

scamp

noun
  • A mischievous person, especially a playful, impish youngster. 

  • A preliminary design sketch. 

  • A rascal, swindler, or rogue; a ne'er-do-well. 

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