fool

A person with poor judgment or little intelligence.

You were a fool to cross that busy road without looking.

The village fool threw his own shoes down the well.

A jester; a person whose role was to entertain a sovereign and the court (or lower personages).

1896, Frederick Peterson IN Popular Science Monthly Volume 50 December 1896 , Idiots Savants This court fool could say bright things on occasion, but his main use to the ladies and lords of the palace was to serve as victim to practical jokes, cruel, coarse, and vulgar enough to be appreciated perhaps in the Bowery.

A stock character typified by unintelligence, naïveté or lucklessness, usually as a form of comic relief; often used as a source of insight or pathos for the audience, as such characters are generally less bound by social expectations.

Someone who has been made a fool of or tricked; dupe.

Such clouds of nameless trouble cross ⁠All night below the darken’d eyes; ⁠With morning wakes the will, and cries, ‘Thou shalt not be the fool of loss.’

Someone who derives pleasure from something specified.

Can they think me […] their fool or jester?

I'm a fool for the city.

To trick; to deceive.

She bit it gently and found that it resembled a worm in no way whatsoever as to taste although because it was long and slender, a Little Red Hen might easily be fooled by its appearance.

There appears to be no process of gradually fooling oneself while degrading standards so characteristic of the Solid Rocket Booster or Space Shuttle Main Engine safety systems.

To act in an idiotic manner; to act foolishly.

1681/1682, John Dryden, The Spanish Fryar Is this a time for fooling?

She's always complaining that she got stuck with the worst possible committee. And that me and Jimmy fool more than we work.

To make a fool of; to make act the fool.

They fool me to the top of my bent.

Foolish.

Of all the fool, fruitless jobs, making anything of a creature that begins by deceiving her, is the foolest a sane woman ever undertook.

That was a fool thing to do. You could have gotten yourself shot