History
History
History
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US
Meaning:
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to untie, unfasten, loosen (knots, buttons etc); to destroy (something good) and bring back the (bad) state of affairs that existed before

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loosen unlock unravel disengage disentangle free loose release unbind unblock unbutton unfasten unloose unloosen untie unwrap unclose unfix unshut unstop
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Cases of word usage

1) to undo the buckle(s) of (something) (unbuckle)

2) of undo (undid)

3) to undo the hooks of (a dress etc) (unhook)

UNDO as in Wiktionary
UNDO as in Wikipedia