ἀπαιθριάζω
From LSJ
βωμὸν Ἀριστοτέλης ἱδρύσατο τόνδε Πλάτωνος, ἀνδρὸς ὃν οὐδ' αἰνεῖν τοῖσι κακοῖσι θέμις → Aristotle had this altar of Plato set up — Plato, a man whom the wicked dare not even mention in praise
English (LSJ)
A expose to the air, air, Hp.Morb.3.17:—Pass., Herod. Med. ap. Orib.5.30.33. 2 ἀ. τὰς νεφέλας clear away the clouds, Ar. Av.1502. 3 intr., clear up, grow fine, of weather, Lib.Or.11.215: metaph., M.Ant.2.4.
German (Pape)
[Seite 275] 1) der freien Luft aussetzen, abkühlen, Hippocr. – 2) aufklären, νεφέλας, die Wolken zertheilen, Ar. Av. 1502, Ggstz συννεφέω; übertr., M. Antonin. 2, 4.