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PORTUGUESE · A WORD WITH POSSIBILITIES

louco.

crazy, mad, insane (of unsound mind)

5 characters2 syllables approx.Português language

Meaning & usage

adj/ˈlo(w).ku/Brazil[ˈlo(ʊ̯).ku]Brazil/ˈlo(w).ku/Portugal/ˈlow.ku/Northern, Portugal

  1. crazy, mad, insane (of unsound mind)

  2. crazy (very unexpected; wildly surprising)

Where this word comes from

Inherited from Old Galician-Portuguese louco, possibly from Andalusian Arabic لَوَق (lawaq, “stupidity”), from Arabic لاق (lāq, “to soften”). Compare Galician louco, Spanish loco and Sicilian loccu.

noun/ˈlo(w).ku/Brazil[ˈlo(ʊ̯).ku]Brazil/ˈlo(w).ku/Portugal/ˈlow.ku/Northern, Portugal

  1. a madman, a crazy person

    masculine
    De médico e de louco, todo o mundo tem um pouco.

  2. a man, a guy, a chap, a fellow

    masculine
    Tu viu o que aquele louco fez?
Where this word comes from

Inherited from Old Galician-Portuguese louco, possibly from Andalusian Arabic لَوَق (lawaq, “stupidity”), from Arabic لاق (lāq, “to soften”). Compare Galician louco, Spanish loco and Sicilian loccu.

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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.

Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.