Amethyst

a′meth-ist, n. a bluish-violet variety of quartz of which drinking cups used to be made, which the ancients supposed prevented drunkenne .— adj. Amethyst′ine , [Gr. amethystos — a , neg., methy-ein , to be drunken— methū , wine, cog. with Eng. mead , Sans. madhu , sweet.]