ἴωσις

εως, ἡ

ἰόω

A. refinement (because freq. due to oxidization of impure substances), χρυσοῦ PMag.Leid.V. 6.18, cf. Olymp. Alch.p.94 B., Zos.Alch.p.145 B., al.
2. making of a tincture, ib. p.219 B.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
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