im·pe·tus

ˈimpədəs/

noun

noun: impetus

1. the force or energy with which a body moves.

   
   

   "hit the booster coil before the flywheel loses all its impetus"

   
   

   synonyms:

   momentum, propulsion, impulsion, motive force, driving force, drive, thrust;  energy, force, power, push, strength

   • the force that makes something happen or happen more quickly.

     plural noun: impetuses

     
     

     
     

     
     

     synonyms:

     motivation, stimulus, incitement, incentive, inducement, inspiration, encouragement, boost, fillip, springboard; informala shot in the arm "the forces were given fresh impetus"