Un*string" (?), v. t. [1st pref. un- + string.]
To deprive of a string or strings; also, to take from a string; as, to unstring beads.
To loosen the string or strings of; as, to unstring a harp or a bow.
To relax the tension of; to loosen.
"His garland they unstring
Used also figuratively; as, his nerves were unstrung by fear.
© Webster 1913.