Did you mean smother?
smother
verb
°To suffocate; stifle; obstruct, more or less completely, the respiration of.
°To extinguish or deaden, as fire, by covering, overlaying, or otherwise excluding the air: as, to smother a fire with ashes.
noun
°That which smothers or appears to smother, in any sense.
°The state of being stifled; suppression.