Sunder (verb)

1. To separate or divide something into two or more parts.
2. To break apart or split something.

Origin:

From the old english word "sundrian" meaning to separate or divide.

Examples:

1. The couple decided to sunder their partnership.
2. The company was sundered into two separate divisions.
3. The rock was sundered by the force of the explosion.
4. The rope was sundered by the sharp blade.
5. The argument sundered the friendship.