* It's a misspelling: Perhaps you meant a similar word, like "peguesis" or "pegasus".
* It's a technical term: It could be a term used in a specific field of study that I'm not familiar with. If you could provide more context, I might be able to help.
* It's a made-up word: It's possible that you've encountered this word in a fictional context, such as a book or game.
Please provide more information so I can assist you better.