skiver vs slummock

skiver

noun
  • A skewer. 

  • A truant; one who is absent without permission, especially from school. 

  • The cutting tool or machine used in splitting leather or skins. 

  • One who uses a skive (or skives). 

  • An inferior quality of leather, made of split sheepskin, tanned by immersion in sumac, and dyed, formerly used for hat linings, pocketbooks, bookbinding, etc. 

  • A slacker. 

verb
  • To skewer, impale. 

slummock

noun
  • A slovenly person 

verb
  • To behave awkwardly or clumsily 

  • To behave lazily or indolently 

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