eş: agité du bocal, aliéné, avoir été bercé trop près du mur, azimuté, barge, barje
köken: Inherited from Middle French fol, from Old French fol, from Latin follem. Cognate with English fool.
aile: fou de la gâchette, faire que fou, fin de semaine folle, fou à lier, fou comme un balai, fou de joie, fou de rage, fou du roi, fou du volant, fou furieux
köken: Uncertain. Inherited from Old Spanish loco, perhaps from Andalusian Arabic لَوْقَاء (láwqa), from Arabic لَوْقَاء (lawqāʔ), feminine singular form of أَلْوَق (ʔalwaq, “stupid”), by reinterpreting the final Andalusian Arabic -a as the Ibero-Romance -a and back-forming the masculine with -o. Edward Roberts thinks the term is related to Arabic لَاق (lāq, “to soften”), but this verb is of root l-y-q,…
köken: From Late Latin mattus (“drunk, intoxicated”), itself either from a contraction of a form *madĭtus (as a past participle of Latin madeō), or madidus (“drunk, tipsy”). Cognate to French mat (“matte, pale”).
Se il mondo è matto / Che cosa c'è di strano? / Ma tutto è matto / Almeno noi ci amiamo
köken: From Byzantine Greek τρελός (trelós), from Koine Greek τρηρός (trērós), from Ancient Greek τρήρων (trḗrōn). The chess sense is a semantic loan from French fou.
madman, lunatic · madness, insanity · enthusiast, fan
eş: 狂人, きじるし, ばか, マニア, フリーク
köken: Verbal noun of 気(き)が違(ちが)う (ki ga chigau, “to be mad”). Analyzable as 気(き) (ki, “mind, temperament, character; mood, spirit”) + 違(ちが)い (chigai, “difference; mistake”, 連(れん)用(よう)形(けい) (ren'yōkei, “stem or continuative form”) of the verb 違(ちが)う (chigau, “to differ; to be mistaken”)).
köken: From Old Swedish dāre, from Old Norse dári, Middle Low German dore, from Old Saxon *dōro, from Proto-West Germanic *dauʀō. See also German Tor; Icelandic dári, Danish dåre.
köken: From Old Danish gælninger, from galin + -inger, equivalent to galen (“crazy, mad”) + -ing (“-y, -ie”). Cognate with Swedish galning, Norwegian Bokmål galning (also gærning) and Norwegian Nynorsk galning.
köken: Unknown. Inherited from Old Galician-Portuguese louco, lauco (13th century, Cantigas de Santa Maria), perhaps from Andalusian Arabic لَوَق (lawaq, “stupidity”), from Arabic لاق (lāq, “to soften”). Compare Portuguese louco, Spanish loco, and Sicilian loccu.