If I decimate this meal, I'll only have eaten ten percent of it.

The army is preparing to decimate the city.

Decimate Christendom was created in 2004-03.

decimal is an adjective, decimate is a verb.

Decimate the Weak was created on 2008-02-05.

To take the tenth part of; to tithe., To select by lot and punish with death every tenth man of; as, to decimate a regiment as a punishment for mutiny., To destroy a considerable part of; as, to decimate an army in battle; to decimate a people by disease.