Answer: efflux

AnswerCrossword Clue
EFFLUXGushing outflow
EFFLUXOutward flow
EFFLUXPassing of time
effluxpassing or lapse of time
effluxsomething that flows out; effluence
effluxpassing away; expiration; ending
effluxthat which flows out
effluxoutward flow, as of water