D defs.my
Entry 3 senses Webster, 1913

Decimate

/dĕs'-əm-ātˌ/ · Dec·i·mate · IPA /ˈdɛsəmeɪt/
01 v. t. To take the tenth part of; to tithe.
imp. & p. p. Decimated; p. pr. & vb. n. Decimating
  1. 1.
    To take the tenth part of; to tithe.
  2. 2.
    To select by lot and punish with death every tenth man of; as, to decimate a regiment as a punishment for mutiny.
  3. 3.
    To destroy a considerable part of; as, to decimate an army in battle; to decimate a people by disease.