Relax (verb)

1. To make or become less tense, rigid, or firm.
2. To make or become less severe or strict.
3. To make or become less active or intense.
4. To give or allow oneself to rest or engage in a leisure activity.
5. To release or slacken tension or effort.

Origin:

From middle english relaxen, from latin relaxō ("loosen, slacken, make less severe"), from re- + laxō ("loosen, slacke.n")

Examples:

1. She relaxed her grip on the pen.
2. He's trying to relax the rules.
3. The company is trying to relax the dress code.
4. He's trying to relax after a long day of work.
5. They're trying to relax their muscles after a workout.