- Finance.
- to liquidate or extinguish (a mortgage, debt, or other obligation), especially by periodic payments to the creditor or to a sinking fund.
- to write off a cost of (an asset) gradually.
- to convey to a corporation or church group; alienate in mortmain.
- to liquidate (a debt, mortgage, etc) by instalment payments or by periodic transfers to a sinking fund
- to write off (a wasting asset) by annual transfers to a sinking fund
- (formerly) to transfer (lands, etc) in mortmain
