depose put down from office, dethrone XIII; lay aside, lay down, remove XIV; testify (to), attest XV. — (O)F. déposer, based on L. dēpōnere lay aside or down, deposit, entrust, f. DE- 2 + pōnere place; see POSE 1.
So deposit sb. (- L. dēpositum, sb. use of n. of pp. of dēpōnere) and vb. (— F. †dépositer or medL. dēpositāre, f. L. dēpositum) XVII. depositary one with whom a thing is deposited XVII; place of deposit XVIII. — late L. dēpositārius. deposition degradation, dethronement XIV; giving of testimony on oath XV; taking down of Christ from the Cross XVI. — (O)F. — L. depository keeper of a deposit XVII; place of deposit XVIII. — medL. dēpositōrium. depot place for military stores or troops XVIII; depository; (U.S.) railway station XIX. — F. dépôt, OF. depost — L. dēpositum DEPOSIT.

de·pose / diˈpōz/ • v. [tr.] 1. remove from office suddenly and forcefully: he had been deposed by a military coup.2. Law testify to or give (evidence) on oath, typically in a written statement: every affidavit shall state which of the facts deposed to are within the deponent's knowledge.3. Law to question (a witness) in deposition.

DEPOSE

To make a deposition; to give evidence in the shape of a deposition; to make statements that are written down and sworn to; to give testimony that 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 or her will. The term is usually applied to the deprivation of all authority of a sovereign.

In ancient usage, to testify as a witness; to give evidence under oath.