Meaning

noun a preserve made of the pulp and rind of citrus fruits

originBorrowed from Middle French marmelade, from Portuguese marmelada (“quince jam”), from marmelo (“quince”), from Latin melimēlum (“sweet apple”), from Ancient Greek μελίμηλον (melímēlon), from μέλι (méli, “honey”) + μῆλον (mêlon, “apple”). A false folk etymology claims that this comes from the French phrase “Marie est malade” (“Mary is ill”), referring to Mary, Queen of Scots, falling ill and being…

Etymology from Wiktionary, CC BY-SA 3.0