Constrain

1. To compel; to force; to necessitate; to oblige.
2. To bring into a narrow compass; to compress.
3. To secure by bonds; to chain; to bond or confine; to hold tightly; to constringe.
4. To violate; to ravish.
5. To produce in such a manner as to give an unnatural effect; as, a constrained voice.
6. To hold back by force; to restrain; to repress.