flan

baked custard tart; coin die; planchet (coin blank)

Inherited from Old French flaon, from Late Latin fladō (“flat cake”), from Frankish *flaþō (“flat cake”), from Proto-Indo-European *pl̥h₂t- (“broad, flat”), from Proto-Indo-European *pelh₂- (“to spread out, be broad, be flat”). Akin to Old High German flado (“flat cake, offering cake”) (German Fladen), Dutch vla (“baked custard”).