Likewise, according to Adler, in the Ambrosian Lexicon (2212, cf. 2230). For the glossing cf. already Hesychius epsilon6605; the headword there is neuter e)th/sion, quoted (Latte asserts) from Euripides, Alcestis 336. According to Adler, the present entry derives from the scholia to Demosthenes 4.31, where the Etesian winds (epsilon 3309) are mentioned.
For this adjective see also the initial gloss at epsilon 134.