The Collaborative International Dictionary of English v.0.48:

Amort \A*mort"\, a. [Pref. a- + F. mort death, dead; all amort
   is for alamort.]
   As if dead; lifeless; spiritless; dejected; depressed.
   --Shak.
   [1913 Webster] Amortisable
   Amortisation
   Amortise

WordNet (r) 3.0 (2006):

amort
    adj 1: utterly cast down