prognosis

 
Pronunciation: /prɒgˈnəʊsɪs/

noun (plural prognoses /-siːz/)

  • the likely course of a medical condition: the disease has a poor prognosis
  • an opinion, based on medical experience, of the likely course of a medical condition: it is very difficult to make an accurate prognosis
  • a forecast of the likely outcome of a situation: gloomy prognoses about overpopulation

Origin:

mid 17th century: via late Latin from Greek prognōsis, from pro- 'before' + gignōskein 'know'

Spelling rule

Make the plural by changing the -is ending to -es: (prognoses).