Another word for stagnate

Without war the world would stagnate and lose itself in materialism."

Our village life would stagnate if it were not for the unexplored forests and meadows which surround it.

All the sluices should be substantially built at first with stones and mortar, to prevent the leakage of water; for, should water from a leak be permitted to find its way into the meadow, that portion of it will stagnate and produce coarse grasses.

After their passage the Adriatic question was again allowed to stagnate, the Powers resuming their negative attitude, while advocating direct discussion between the two parties.

A deep stratum through which water can percolate, but in which it can never stagnate, is therefore necessary.