# prognosis

> English word · Noun · IPA /pɹɒɡˈnəʊsɪs/ · frequency rank #18,929

## Definitions
1. A forecast of the future course or outcome of a situation based on what is presently known; a prediction.
2. A forecast of the future course or outcome of a disease or disorder based on current medical knowledge.

## Etymology
Learned borrowing from Late Latin prognōsis (“forecast, prediction; forecast of the course and outcome of a disease”), itself borrowed from Ancient Greek πρόγνωσις (prógnōsis, “forecast of the course and outcome of a disease; (Koine) foreknowledge, perceiving beforehand, prediction”), from προ- (pro-, prefix meaning ‘before; beforehand’) + γνῶσῐς (gnôsĭs, “inquiry, investigation; knowledge”). The plural prognoses is a learned borrowing from Late Latin prognōsēs.
Cognates
* Middle French prognosie (“forecast, prediction”) (modern French prognosie (obsolete), prognose (“forecast of the course and outcome of a disease”))
* Sanskrit प्रज्ञा (prajñā, “intelligence, wisdom; judgment; knowledge”)

## Easily confused with
- **prognostic** (https://plainspell.com/en/vs/prognosis-vs-prognostic)

## Common misspellings (14)
`porgnosis`, `pprognosis`, `prgonosis`, `proggnosis`, `prognnosis`, `prognoiss`, `prognosiss`, `prognossi`, `prognossis`, `prognsois`, `progonsis`, `prongosis`, `prrognosis`, `rpognosis`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/prognosis