D defs.my
Entry 3 senses Webster, 1913

Amortize

/ăm'-ẽrt-īzˌ/ · A·mor·tize · IPA /ˈæmɚtaɪz/
01 v. t. To make as if dead; to destroy.
  1. 1.
    To make as if dead; to destroy.[Obs.]
  2. 2.
    To alienate in mortmain, that is, to convey to a corporation. See Mortmain.(Law) See: Mortmain
  3. 3.
    To clear off or extinguish, as a debt, usually by means of a sinking fund.