deshacer

A common irregular verb (conjugated like hacer) meaning to undo, take apart, or reverse something already done — deshacer la cama, deshacer un nudo, deshacer un error. Also used reflexively, deshacerse de algo, meaning to get rid of something.

• Voy a deshacer la maleta antes de dormir. — I'm going to unpack the suitcase before going to sleep.
• No pude deshacer el nudo de los cordones. — I couldn't undo the knot in the laces.
• Decidió deshacerse de la ropa que ya no usaba. — He decided to get rid of the clothes he no longer wore.

Deshacerse de algo means to get rid of something, not to 'undo yourself' — a common calque error is using it to just mean 'undo,' when with de it's really about discarding something.

Often confused with hacer.

• book "...los agravios que pensaba deshacer, tuertos que enderezar..." — From Part One, Chapter II of Cervantes's Don Quixote (1605), describing the wrongs Don Quixote imagines himself righting on his very first sally out into the world. Cervantes's actual text uses deshacer here — the more famous popular quotation "desfacer entuertos" is a later, technically inaccurate paraphrase (the word entuerto never actually appears in the novel).