Decompress (verb)

1. To reduce the pressure in a compressed gas or fluid, typically by releasing it into a larger space.
2. To restore data that has been compressed back to its original format.
3. To relax or unwind after a period of stress or tension.

Origin:

From de- + compress, from latin comprimare, from com- + premere ("to pres.s")

Examples:

1. The diver had to decompress slowly to avoid getting the bends.
2. The compressed file was decompressed to reveal the original data.
3. After a long day at work, it was nice to decompress with a good book.
4. The patient had to decompress for a few minutes after the surgery.
5. I like to decompress by going for a walk after work.