What is "decimates"

Usage examples of "decimates".

It is not only the supply routes that he decimates, but much of the population of Skarabost as well.

Maybe it's the shock or the hour that decimates her or the echo of that bad moment in the bedroom, that she hasn't resolved, or maybe there is such a thing as prescience.

It seems so logical: if the biggest and bravest of our tribe decimates the biggest and bravest of the neighboring tribe, we will be the master race and our increased lebensraum -- excuse me, hunting territory and living space -- will insure better survival rates for our nearest and dearest.