corvee vs task

corvee

noun
  • Unpaid labor required by a feudal lord. 

  • Labor, especially for roads or dams, in lieu of taxes. 

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 

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