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hariolation

noun
har·​i·​o·​la·​tion | \ˌharēəˈlāshən\
plural -s

Definition of hariolation 

: the act or process of deduction : guesswork facts as distinguished from what classical scholars call hariolations— George Saintsbury

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History and Etymology for hariolation

Latin hariolation-, hariolatio action of prophesying, from hariolatus (past participle of hariolari to prophesy, divine) + -ion-, -io -ion; probably akin to Latin haruspex soothsayer, diviner

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