What is "amortised"

Usage examples of "amortised".

But forasmuch as the good works that men do while they be in good life be all amortised [killed, deadened] by sin following, and also since all the good works that men do while they be in deadly sin be utterly dead, as for to have the life perdurable [everlasting], well may that man that no good works doth, sing that new French song, J'ai tout perdu -- mon temps et mon labour .