Deposition (noun)

1. The process or act of depositing something, especially sediment or material.
2. A formal statement made under oath, especially in a legal case.

Origin:

Late middle english: from latin depositio(n-), from the verb deponere "lay aside, deposit", from de- "down" + ponere "to place".

Examples:

1. The deposition of sediment along the riverbed created fertile land for agriculture.
2. The deposition of minerals in the rock formations revealed the geological history of the area.
3. The deposition of the witness was taken in the court room.
4. The deposition of the expert was essential to the understanding of the technical issues in the case.
5. The deposition of the former employee provided valuable information to the investigation.