αἰθέριος · aitherios — LSJ
of αἰθήρ or the upper air, hence,
high in air, on high, A. Pr. 158 (anap.), Th. 81, S. OC 1082, etc.; αἰθερία ἀνέπτα flew up into the air, E. Med. 440, cf. Andr. 830; αἰ. γῆ, of the moon, Pythag. ap. Simp. in Cael. 511.26: epith. of Zeus, Arist. Mu. 401a17.
ethereal, heavenly, φύσις Parm. 10.1; οἱ αἰ. Hierocl. in CA 27 P. 484M.; γονή E. Fr. l.c. Adv. -ίως Iamb. Myst. 1.9.—Trag. only in lyr.