prognosticant
/prɒɡˈnɒstɪk(ə)nt/adjective
Prognosticatory, prophetic.
noun
A person who or thing which provides a prognosis or forecast, a prognosticator.
Origin
Early 17th century. From post-classical Latin prognosticant-, prognosticans, present participle of prognosticare prognosticate; compare -ant. With use as adjective compare prognosticatory. With use as noun compare earlier prognosticator, prognostic.