sōry, ĕos, n., = σῶρυ,
a kind of ore , ink-stone , sory , Plin. 34, 12, 29, § 117; 34, 12, 30, § 120; Cels. 6, 9, 23.
·noun Green vitriol, or some earth imregnated with it. ...
Webster's Dictionary of the English Language