task vs taskwork

task

noun
  • A piece of work done as part of one’s duties. 

  • Any piece of work done. 

  • A difficult or tedious undertaking. 

  • A process or execution of a program. 

  • An objective. 

verb
  • To charge, as with a fault. 

  • To assign a task to, or impose a task on. 

  • To oppress with severe or excessive burdens; to tax 

taskwork

noun
  • Work done as a task. 

  • Work done by the job; piece work. 

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