Prognosis

Prognosis: In medicine, the art of foretelling a disease; knowing beforehand the cause of a disease.

We can also use the word prognosis to forecast. When it comes to the weather, for example, it is difficult to make an accurate prognosis.

Prognosis is “pre-knowledge.” The word comes from the Greek prefix προ- (pro), before and γιγνώσκω (gignosko), I know.