Definify.com

Webster 1828 Edition

ppr.

Imposing a task on; requiring to perform.

tasking

tasking ‎(plural taskings)

(military) A task; an assigned item of work.
- 2007, Perry M. Smith, Daniel M. Gerstein, Assignment: Pentagon: How to Excel in a Bureaucracy
  Action officers receive taskings in many ways. A top boss will grab you in the hall and tell you to do something, some key official will give you multiple taskings right in the middle of your briefing, and you will pick up taskings in staff meetings […]