Earlier quoted context omitted.
Even more fun fact. "Thermidor" as well as the other months on the Republican Calendar don't have any root word. They were made up whole cloth and intended to sound like Greek or Latin.
Autumn: Vendémiaire (from French vendange, derived from Latin vindemia, "vintage"), starting 22, 23, or 24 September Brumaire (from French brume, "mist", from Latin brūma, "winter solstice; winter; winter cold"), starting 22, 23, or 24 October Frimaire (from French frimas, "frost"), starting 21, 22, or 23 November Winter: Nivôse (from Latin nivosus, "snowy"), starting 21, 22, or 23 December Pluviôse (from French pluv…