The word decimate comes from the latin "decimare" and means to destroy or take one tenth. The origin of decimation comes from the Roman Army. A general could order a legion "decimated" as punishment for mutiny. One out of ten members of the legion would be selected by death lots and clubbed to death by their fellow soldiers. The term has also been used to describe tithes. (Death and Taxes!)

The modern meaning for decimation is to destroy a greater part of something. This is a lower level of destruction than annihilation.

Dec"i*mate (?), v. t. [imp. & p. p. Decimated (?); p. pr. & vb. n. Decimating (?).] [L. decimatus, p. p. of decimare to decimate (in senses 1 & 2), fr. decimus tenth. See Decimal.]

1.

To take the tenth part of; to tithe.

Johnson.

2.

To select by lot and punish with death every tenth man of; as, to decimate a regiment as a punishment for mutiny.

Macaulay.

3.

To destroy a considerable part of; as, to decimate an army in battle; to decimate a people by disease.

 

© Webster 1913.

Log in or register to write something here or to contact authors.