asfixiar

v. asphyxiate, suffocate; be suffocated

v. asphyxiate, suffocate, smother, choke

= smother, suffocate, stifle.
Ex: This article outlines the preparatory stages and describes some of the problems presented by the physical conditions in a city of tents either drenched by rain or smothered by dust = Este artículo esboza las etapas preparatorias y describe algunos de los problemas que presentan las condiciones físicas de una gran cantidad de tiendas de campaña empapadas por la lluvia o cubiertas por el polvo.
Ex: The United Nations has been accused of 'drowning in its own words and suffocating in its own documentation'.
Ex: Excessive emphasis on the need to exact payment will stifle the flow of information.