To pay off gradually usually by periodic payments

(From Sapiens: A Brief History of Humankind) Unable to die from disease or age. Immortal if no physical ailment befalls you.

Amort means a British idiot that drives on the wrong of the road.

Possessing an indefinite lifespan, but still susceptible to fatal injury.

1. the reduction of the value of an asset by prorating its cost over a period of years
2. payment of an obligation in a series of installments or transfers

To beat severly, as in a game or otherwise.

To finish something off or wear something out.

To be both Immortal and Mortal at the same time.