1) To disentangle 
• (v. t.) To make one`s way through; to traverse; as, to unthread a devious path. • (v. t.) To deprive of ligaments; to loose the ligaments of. • (v. t.) To draw or take out a thread from; as, to unthread a needle.
to draw out or take out the thread from: to unthread a sewing machine. · to thread one's way through or out of, as a densely wooded forest. · to disentangle; separate out of a raveled or confused condition: to unthread a mystery.