Unstring

Part of speech: verb (v.)

1. To deprive of a string or strings; also, to take from a string; as, to unstring beads.

2. To loosen the string or strings of; as, to unstring a harp or a bow.

3. To relax the tension of; to loosen. "His garland they unstring." Dryden.

4. Used also figuratively; as, his nerves were unstrung by fear.