† ˈsardachateObs.—0 [ad. L. sardachātēs; see sard n.1 and achate n.1] (See quots.) 1706Phillips (ed. Kersey), Sardachates, a kind of Agate, of a Cornelian Colour.1828–32Webster, Sardachate, the clouded and spotted agate, of a pale flesh color. In some recent Dicts.