αἰθὴρ δ᾽ ἐλαφραῖς πτερύγων ῥιπαῖς ὑποσυρίζει (Aeschylus, Prometheus Bound 126) → The bright air fanned | whistles and shrills with rapid beat of wings.
P. φιλόπονος, φιλεργός, V. πολύπονος.
eager for knowledge: P. φιλομαθής.
zealous: P. and V. σπουδαῖος, πρόθυμος.