Hypertext Webster Gateway: "unsay"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Unsay \Un*say\, v. t. [1st pref. un- + say.]
To recant or recall, as what has been said; to refract; to
take back again; to make as if not said.
You can say and unsay things at pleasure. --Goldsmith.
From WordNet (r) 1.7 (wn)
unsay
v : take back what one has said; "He swallowed his words" [syn:
{swallow}, {take back}, {withdraw}]
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