undo
Translation
to undo, to reverse, to untie
Examples
You can undo the changes you made.
You can undo the changes you made.
Can you help me undo this knot?
Can you help me undo this knot?
The damage cannot be undone.
The damage cannot be undone.
Grammar Patterns
to undo ((sth.)) to reverse or cancel (sth.) I need to undo my mistake.
Similar Words
Synonyms: reverse, cancel, untie, unfasten; Antonyms: do, fasten, tie
Etymology
From the prefix 'un-' (reversal) + 'do'. It literally means 'to reverse what was done'.
Memory Tips
Think of the 'Undo' button (Ctrl+Z or Cmd+Z) on a computer, which reverses the last action.