Origin: 1350–1400; Middle English (< Anglo-French ) < Late Latin dēpositiōn- (stem of dēpositiō) a putting aside, testimony, burial, equivalent to Latin dēposit(us) laid down (see deposit) + -iōn--ion
c.1400, "dethronement, putting down from dignity or authority," from O.Fr. deposition (12c.), from L. depositionem, noun of action from deponere (see deposit). Meaning "giving of testimony under oath" is from late 15c. Meaning "action of depositing" is from 1590s. Properly,
The accumulation or laying down of matter by a natural process, as the laying down of sediments in a river or the accumulation of mineral deposits in a bodily organ.
The process of changing from a gas to a solid without passing through an intermediate liquid phase. carbon dioxide, at a pressure of one atmosphere, undergoes deposition at about -78 degrees Celsius. Compare sublimation.