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desmentir

/dez.menˈtiɾ/

to deny, contradict, or prove false

From Spanish, probably from Latin des (undoing) + Latin mentir (to lie or tell an untruth).

verb
des
Spanish
des-
Negative or reversive prefix, often expressing removal, undoing, or denial.
Latin (probable source)
dis-
A prefix associated with separation, reversal, or negation; the precise transmission into Spanish is not documented in the supplied data.
mentir
Latin
mentīrī
To lie or tell an untruth.
Spanish
mentir
To lie; the verb used as the base of desmentir.
Combined
des- + mentir → desmentir
The prefix des- combines with mentir to create the sense of denying, contradicting, or declaring something untrue.
Medieval or early modern Spanish
desmentir
To deny an assertion or refute an accusation.
Modern Spanish
desmentir
To contradict, deny, disprove, or publicly correct a claim.
Modern English
desmentir
“

A Spanish speaker can turn “to lie” into “to deny a lie” simply by placing des- in front of mentir. The base verb reaches back to Latin mentīrī, while des- carries the familiar idea of undoing or reversing something—like taking apart a knot rather than tying one. So desmentir is not merely “to say no”; it is to pull a statement back into the open and declare it false, a verb tailor-made for politicians, newspapers, and anyone issuing a public correction. The memorable image is linguistic untying: mentir ties the lie, and desmentir cuts the cord.

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