To overcome in battle or contest.
To nullify
To prevent (something) from being achieved.
To reduce, to nothing, the strength of.
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 deviate from the previous course or direction.
To cause to deviate from a set course or direction.
To cause to come off the tracks.
To come off the tracks.
An instance of diverting a conversation or debate from its original topic.
Synonym of derailer: A device placed on railway tracks in order to cause a train to derail.