αἴθρη

A. clear sky, ποίησον δ’ αἴθρην Il. 17.646; ἀλλὰ μάλ’ αἴθρη πέπταται ἀνέφελος Od. 6.44, cf. Ar. Av. 778 (lyr.), Lyc. 700, AP 6.179 (Arch.), etc.

II. air, as an element, Orac.Chald. 169.