in extremis

 
Pronunciation: /ˌɪn ɛkˈstriːmɪs/

adverb

  • in an extremely difficult situation: one or two would talk to the press in extremis
  • at the point of death: cannibalism is rare but, in extremis, it is something to which the human species will resort

Origin:

Latin, from in 'in' + extremis, ablative plural of extremus 'outermost'