could be a misspelling of 'perspirent' (causing sweat) or 'persuadent' (persuasive)

Persperent

Persperent Foods: Do They Make You Sweat?

Excessive Sweating: Causes Excessive sweating, also known as hyperhidrosis, can stem from various factors. While sometimes a natural response to heat or exercise, persistent and excessive sweating might indicate an underlying medical condition. Common causes include: Primary hyperhidrosis: This type often affects the hands, feet, underarms, and...