unjoint

/ʌnˈdʒɔɪnt/
verb
  1. To separate or disconnect the parts of something that are joined together, especially at a joint.
    • She carefully unjointed the wooden frame to pack it flat.
    • It took some effort to unjoint the old metal rods that had rusted together.
    • The mechanic had to unjoint the pipe to access the leak.
Antonyms
What does "unjoint" mean? | whatsthatwordmean | whatsthatwordmean