pyrexia (noun)

1. Why did the thermometer go to school? Because it wanted to learn how to measure pyrexia!

2. In ancient Greek mythology, pyrexia was believed to be caused by the wrath of the god of fever.

3. The latest trend in the fashion industry is wearing high-end designer clothes even when experiencing pyrexia.

4. Despite having pyrexia, Sarah's boyfriend surprised her with a romantic candlelit dinner to make her feel better.