a spent force

: used up : consumed

: exhausted of active or required components or qualities often for a particular purpose

: drained of energy or effectiveness : exhausted

: strength or energy exerted or brought to bear : cause of motion or change : active power

used with a number to indicate the strength of the wind according to the Beaufort scale

: moral or mental strength

: to do violence to

: to compel by physical, moral, or intellectual means

: to make or cause especially through natural or logical necessity