Fasten (verb)

1. To secure or make fast with a fastening device, such as a lock, latch, or button.
2. To join or attach something securely.
3. To become fixed or attached.

Origin:

From middle english fastenen, from old english fæstnian, from fæst, "firm" + -nian, -en, "to make.".

Examples:

1. He fastened the seatbelt before starting the car.
2. She fastened her dress with a small brooch.
3. The door fastened with a loud click.
4. He fastened the rope to the tree.
5. She fastened the picture to the wall with nails.