To put out of order; to disturb the regular order of; to throw into confusion; as, to derange the plans of a commander, or the affairs of a nation. I had long supposed that nothing could derange or interrupt the course of putrefaction.

To embarrass; to disorder; as, his private affairs are deranged.

To disorder the intellect; to disturb the regular operations of reason.

To remove from place or office, as the personal staff of a principal military officer. Thus when a general officer resigns or is removed from office, the personal staff appointed by himself are said to be deranged.