Word 1: Rest (REST)
Meaning 1: To cease from action or motion
Example Sentence: The doctor advised him to take rest.

Meaning 2: Something left after other parts have been taken away, remainder
Example Sentence: Make a fresh green salad and use the rest of the vegetables for the stew.

Meaning 3: To lie buried.
Example Sentence: Tutankhamun’s mummy rested in his tomb for more than 3,000 years.

Word 2: Wrest (REST)
Meaning 1: To pull, force, or move by violent wringing or twisting movements
Example Sentence: He wrested the magazine from her hands.

Meaning 2: To gain with difficulty by or as if by force, violence, or determined labor
Example Sentence: The workers managed to wrest control of the company from the management.

Example Sentence using both words:
He did not rest his efforts till he had wrested the custody of his children from her.