-der-

n. The act of pulling up by the roots; eradication. [ R. ]

v. t. [ imp. & p. p. Derailed p. pr. & vb. n. Derailing. ] To cause to run off from the rails of a railroad, as a locomotive. Lardner. [ 1913 Webster ]

n. The act of going off, or the state of being off, the rails of a railroad. [ 1913 Webster ]

{ } v. t. [ See Darraign. ] (Old Law) To prove or to refute by proof; to clear (one's self). [ Obs. ]

{ } n. [ See Darraign. ] 1. The act of deraigning. [ Obs. ] [ 1913 Webster ]

2. The renunciation of religious or monastic vows. [ Obs. ] Blount. [ 1913 Webster ]

v. t. [ imp. & p. p. Deranged p. pr. & vb. n. Deranging. ] [ F. déranger; pref. dé- = dés- (L. dis) + ranger to range. See Range, and cf. Disarrange, Disrank. ] 1. To put out of place, order, or rank; to disturb the proper arrangement or order of; to throw into disorder, confusion, or embarrassment; to disorder; to disarrange; as, to derange the plans of a commander, or the affairs of a nation. [ 1913 Webster ]

2. To disturb in action or function, as a part or organ, or the whole of a machine or organism. [ 1913 Webster ]

A sudden fall deranges some of our internal parts. Blair. [ 1913 Webster ]

3. To disturb in the orderly or normal action of the intellect; to render insane.

Syn. -- To disorder; disarrange; displace; unsettle; disturb; confuse; discompose; ruffle; disconcert. [ 1913 Webster ]

a. Disordered; especially, disordered in mind; crazy; insane. [ 1913 Webster ]

The story of a poor deranged parish lad. Lamb. [ 1913 Webster ]

n. [ Cf. F. dérangement. ] The act of deranging or putting out of order, or the state of being deranged; disarrangement; disorder; confusion; especially, mental disorder; insanity.

Syn. -- Disorder; confusion; embarrassment; irregularity; disturbance; insanity; lunacy; madness; delirium; mania. See Insanity. [ 1913 Webster ]