undo
/ʌnˈduː/ noun C2- An operation that reverses a previous action. · How many undos does this program support?
Plural undos
From the library
“Oh, do let me help to undo it!”
Then when you hear him retire for the night, you must open the shutters of your window, undo the hasp, put your lamp there as a signal to us, and then withdraw quietly with everything which you are likely to want into the room which you used to occupy.
Your portion is unhappily so small, that it will in all likelihood undo the effects of your loveliness and amiable qualifications.
The very last evening was spent there; and her Ladyship again inquired minutely into the particulars of their journey, gave them directions as to the best method of packing, and was so urgent on the necessity of placing gowns in the only right way, that Maria thought herself obliged, on her return, to undo all the work of the morning, and pack her trunk afresh.
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