unthread

verb
un·thread | \ ˌən-ˈthred \
unthreaded; unthreading; unthreads

Definition of unthread 

transitive verb

1 : to draw or take out a thread from unthread a needle

2 : to loosen the threads or connections of

3 : to make one's way through unthread a maze

First Known Use of unthread

1597, in the meaning defined at sense 1

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The first known use of unthread was in 1597

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