v. t. [ 1st pref. un- + thread. ] [ 1913 Webster ]

1. To draw or take out a thread from; as, to unthread a needle. [ 1913 Webster ]

2. To deprive of ligaments; to loose the ligaments of. [ 1913 Webster ]

He with his bare wand can unthread thy joints. Milton. [ 1913 Webster ]

3. To make one's way through; to traverse; as, to unthread a devious path. De Quincey. [ 1913 Webster ]