a week ago
In recent years, many celebrities have participated in the day by showing up in public in their pajamas.
Pajams, payjamas, or jammies is a loose piece of clothing, not unlike pants, worn on the lower part of a person's body. While most people wear them to bed, they were once, and still are, part of a normal outfit worn by men and women during the day in many parts of the Middle East and South Asia.
...that the word pajama comes from the Persian word, payjameh meaning leg-garment?