English

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Etymology

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un- +‎ attach

Pronunciation

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Verb

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unattach (third-person singular simple present unattaches, present participle unattaching, simple past and past participle unattached)

  1. (transitive, intransitive) To detach.
    • 2011, Robyn Ness, Mac OS X Lion in Depth, page 456:
      To unattach disk images from Disk Utility, select the disk image file and press Delete or drag its icon out of the window.