ῥύαξ [ῠ], ᾱκος, ὁ,
(ῥέω) rushing stream, mountain torrent, [[ 5th c.BC: Thucydides Historicus 4.96, 1st c.AD: Dioscorides (Dioscurides) Medicus 3.51, probably in “OGI” 335.111 (Pergam., 2nd c.BC). ] Refs 5th c.BC+]
__2 especially stream of lava from a volcano, ὁ ῥ. τοῦ πυρὸς ἐκ τῆς Αἴτνης [[ 5th c.BC: Thucydides Historicus 3.116, compare 5th-6th c.BC: Plato Philosophus “Phaedo” 111e, 113b, 4th c.BC: Aristoteles Philosophus “Mirabilia” 833a17, 4th-3rd c.BC: Theophrastus Philosophus “de Lapidibus” 22 ] Refs 5th c.BC+]; ὁ καλούμενος ῥ. [[ 1st c.BC: Diodorus Siculus Historicus 14.59. ] Refs 1st c.BC+]
__3 metaphorically, ῥ. ἀργύρου γενέσθαι [[ [prev. author] 5.35. ] Refs]
__4 of dolphins, etc., ἔχει οἷον ῥ. δύο ἐξ ὧν τὸ γάλα ῥεῖ two flow-holes, [[ 4th c.BC: Aristoteles Philosophus “Historia Animalium” 504b24. ] Refs 4th c.BC+]