γάλοως

A. γαλόῳ Il. 3.122, 22.473: Att. γάλως, gen. γάλω Hdn.Gr.2.236 (also gen. γάλωτος acc. to EM 220.18):—husband's sister or brother's wife, sister-in-law, Il. 6.378, al. (Cf. Lat. glōs, Phryg. γέλαρος· ἀδελφοῦ γυνή, Hsch.)
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project