ὑαλᾶς

ᾶ, ὁ
A. glass-worker, IG 3.3436 (gen. οἱαλᾶ lapis).
II. ὑάλας perh. = γυάλας, PLond. 2.402 ii 13 (ii B. C.).
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project