deposit (v.) Look up deposit at Dictionary.com
1620s, from Latin depositus, past participle of deponere "lay aside, put down, deposit," also used of births and bets, from de- "away" (see de-) + ponere "to put" (see position). Related: Deposited; depositing.
deposit (n.) Look up deposit at Dictionary.com
1620s, from Latin depositum, from deponere (see deposit (v.)). Geological sense is from 1781; monetary sense is from 1737.