verb

desafiar

challenge

Invitar a alguien a competir o a demostrar que puede hacer algo difícil.

The verb desafiar primarily refers to the act of challenging someone or something. It can be understood in several contexts:

To challenge or defy: To invite someone to a contest, competition, or fight. It also implies standing up to authority or a difficult situation, refusing to submit to an order or a power.
To dare: To provoke someone to do something difficult or dangerous to prove their courage or capability.
To withstand or face: To confront a physical obstacle or a harsh condition, such as "desafiar la gravedad" (to defy gravity) or "desafiar al destino" (to defy fate).

Grammar:

It is a regular -ar verb, though it undergoes a spelling change (adding an accent) in the present indicative and subjunctive forms to maintain the stress on the "i" (e.g., desafío, desafías, desafíe).
It is a transitive verb, meaning it requires a direct object (the person or thing being challenged).

Word origin:

The word comes from the Old Spanish desafiar, which is formed by the prefix des- (reversal or negation) and afiar (to pledge or trust). Afiar originates from the Medieval Latin affidare (to entrust or pledge faith). Historically, it referred to the revocation of a pledge or the formal withdrawal of trust, which was the traditional way of declaring a feud or a duel.