ETHIOPS, a name given by the alchemists to several metallic preparations of a black colour. Thus the black oxide of iron was called ethiops martial; the black sulphuret of mercury, ethiops mineral; and the black oxide of mercury, ethiops per se.
ETHNARCHA (ēthos, nation, ἀρχή, command), in Antiquity, a governor or ruler of a country. The title of ethnarch, like those of tetrarch and phylarch, appears to have been used by the Romans to designate such tributary princes as were not of sufficient importance to be styled kings. See TETRARCH.
Estuary
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Eternity.