Definify.com
Webster 1913 Edition
Undo
1.
To reverse, as what has been done; to annul; to bring to naught.
What’s done can not be
undone
. Shakespeare
To-morrow, ere the setting sun,
She 'd all
She 'd all
undo
that she had done. Swift.
2.
To loose; to open; to take to piece; to unfasten; to untie; hence, to unravel; to solve;
as, to
. undo
a knot; to undo
a puzzling question; to undo
a riddleTennyson.
Pray you,
undo
this button. Shakespeare
She took the spindle, and
undoing
the thread gradually, measured it. Sir W. Scott.
3.
To bring to poverty; to impoverish; to ruin, as in reputation, morals, hopes, or the like;
as, many are
. undone
by unavoidable losses, but more undo
themselves by vices and dissipation, or by indolenceThat quaffing and drinking will
undo
you, Shakespeare
Webster 1828 Edition
Undo
UNDO
,Verb.
T.
1.
To reverse what has been done; to annul; to bring to naught any transaction. We can undo many kinds of work; but we cannot undo crimes, errors or faults.Tomorrow ere the setting sun, she'd all undo what she had done.
2.
To loose; to open; to take to pieces; to unravel; to unfasten; to untie; as, to undo a knot.3.
To ruin; to bring to poverty; to impoverish. Many are undone by unavoidable losses; but more undo themselves by vices and dissipation, or by indolence.4.
To ruin, in a moral sense; to bring to everlasting destruction and misery.5.
To ruin in reputation.