Depose

In practice

In ancient usage, to testlfy as a witness; to give evidence under oath. In modern usage. To make a deposition ; to give evidence in the shape of a deposition; to make statements which are written down and sworn to; to give testimony which is reduced to writing by a duly-qualified officer and sworn to by the deponent. To deprive an individual of a public employment or office against his will.

Wolffius, Inst. § 1063.

The term is usually applied to the deprivation of all authority of a sovereign.