Answer: overrunning

AnswerCrossword Clue
overrunningRun over or beyond (a thing or place)
overrunningOVERRUN, to swarm over
overrunningMove or extend over or beyond
overrunningConquer or occupy (territory) by force
overrunningContinue beyond or above (an expected or allowed time or cost)
overrunningRotate faster than (another part of a machine)
overrunningSpread over or occupy (a place) in large numbers