I will float this etymological aspect...

[FigTree]

Trump

"fabricate, devise," 1690s, from trump "deceive, cheat" (1510s), from Middle English trumpen (late 14c.), from Old French tromper "to deceive," of uncertain origin. Apparently from se tromper de "to mock," from Old French tromper "to blow a trumpet." Brachet explains this as "to play the horn, alluding to quacks and mountebanks, who attracted the public by blowing a horn, and then cheated them into buying ...." The Hindley Old French dictionary has baillier la trompe "blow the trumpet" as "act the fool," and Donkin connects it rather to trombe "waterspout," on the notion of turning (someone) around. Connection with triumph also has been proposed. Related: Trumped; trumping. Trumped up "false, concocted" first recorded 1728.

[dhol82]

1. Excellent!

[Ellen Forradalom]

2. Source?

[unc70]

3. Trompe-l'œil

Deceive the eye, particularly that something appears 3D when it is only 2D.

[Igel]

4. But while etymologies are fine,

they also form the premise of an inforrmal fallacy.

The current meaning is far worse:

trump
noun
Definition of trump

1
a : a card of a suit any of whose cards will win over a card that is not of this suit —called also trump cardb : the suit whose cards are trumps for a particular hand —often used in plural

2
: a decisive overriding factor or final resource —called also trump card

3
: a dependable and exemplary person

One could have bid no trump, but that didn't happen.