déraisonner

== French == === Etymology === From déraison +‎ -er. Cf. also Old French deraisnier. === Pronunciation === IPA(key): /de.ʁɛ.zɔ.ne/ ~ /de.ʁe.zɔ.ne/ === Verb === déraisonner to talk nonsense, rave ==== Conjugation ==== === Further reading === “déraisonner”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012