To reduce, to nothing, the strength of.
To nullify
To prevent (something) from being achieved.
To overcome in battle or contest.
The act or instance of being defeated, of being overcome or vanquished; a loss.
Frustration (by prevention of success), stymieing; (law) nullification.
The act or instance of defeating, of overcoming, vanquishing.
To destroy or abolish something.
To obscure or eclipse something.
To hunt down (a species) to extinction.
To bring about the extinction of a conditioned reflex.
To put out, as in fire; to end burning; to quench.
To die out.
To kill.