κυαναυγής
From LSJ
μέτρον γὰρ τοῦ βίου τὸ καλόν, οὐ τὸ τοῦ χρόνου μῆκος → for life's measure is its beauty not its length (Plutarch, Consolatio ad Apollonium 111.D.4)
English (LSJ)
ές,
A dark-gleaming, ὀφρύες E.Alc.261 (lyr.); τὰς βολὰς τῶν ὀφθαλμῶν ἐστὶ κ. Alciphr.3.1; of the sea, κ. Ἀμφιτρίτη D.P. 169, etc.; πηγή Supp.Epigr.4.467.25 (Milet., iii A.D.); com. of dithyrambs, Ar.Av.1389.
German (Pape)
[Seite 1521] ές, dunkelblau od. schwarzglänzend, übh. schwarz; ὀφρύς, Eur. Alc. 261; vom Meere, Dion. Per. 169; von der Nacht, Orph. H. 2, 3; ἴον, Rufin. 15 (V, 74); τὰ λαμπρὰ γίγνεται ἀέρια καὶ σκότιά γε καὶ κυαναυγέα Ar. Av. 1389. – Auch in Prosa, τὸ κ., Luc. dom. 11.