LSJ
ου, ὁ, the wind from NNW, Arist. Mete. 363b29, Mu. 394b30, Thphr. Vent. 42, Agathem. 2.7, Lyd. Mag. 3.32; — written Θρᾳκίας, Arist. Vent. 973b17, Thphr. Sign. 35; Θρακίας IG 14.1308; — hence θρασκικός, ή, όν, facing NNW, of windows, Zos.Alch. p. 141 B.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)