Definition of prognostication noun from the Oxford Advanced Learner's Dictionary

 

prognostication

 noun
noun
BrE BrE//prɒɡˌnɒstɪˈkeɪʃn//
 
; NAmE NAmE//prɑːɡˌnɑːstɪˈkeɪʃn//
 
(formal)
 
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a thing that somebody says will happen in the future gloomy prognostications Word Origin late Middle English: from Old French prognosticacion, from medieval Latin prognosticatio(n-), from the verb prognosticare ‘make a prediction’, from Greek prognōstikos, from prognōsis, from pro- ‘before’ + gignōskein ‘know’.
See the Oxford Advanced American Dictionary entry: prognostication