undelete in English

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adj. restored or able to be restored.
Ex. A good editor [program] will have some sort of ""undelete"" operation (Byte).

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undeleteorun-delete, verb, -leted,-leting,adjective.

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v.t., v.i. to restore data previously taken out of a computer field or file; reinsert.
Ex. To move a block of text, you actually have to delete the block and then ""undelete"" it in the new location (M.S. Zachmann).