éclaircir

== French == === Etymology === From Late Latin *exclaricire, from Latin claricare. === Pronunciation === IPA(key): /e.klɛʁ.siʁ/ === Verb === éclaircir (transitive) to brighten (up) to thin (down) to clear up, solve, clarify (mystery, problem etc.) ==== Conjugation ==== This is a regular verb of the second conjugation, like finir, choisir, and most other verbs with infinitives ending in -ir. One salient feature of this conjugation is the repeated appearance of the infix -iss-. === Further reading === “éclaircir”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012