Zegi
From Simon Online
Zegi arabice vitriolum zeg.
Apparatus:
vitriolum (-lũ e) AC e | vitreolum f | uitreolũ B
Translation:
Zegi is Arabic for Latin vitriolum {"vitriol"}, also spelt zeg.
Commentary:
Wehr (1976): ﺯﺍﺝ /zāğ/ "vitriol". Siggel (1950: 81): ﺯﺍﺝ /zāğ/ "Vitriol, Art desselben; ... meist Mischung mehrerer Metallsulfate, besonders von Kupfer- und Eisensulfat. {i.e. vitriol, a certain kind of it, ... mostly a mixture of several metal sulphates, especially of copper and iron sulphates}".