I.the sun, Lat. sol, Hom., etc.; ὁρᾶν φάος ἠελίοιο, i.e. to be alive, Il.—The Sun furnished the earliest mode of determining the points of the heaven, πρὸς ἠῶ τ᾽ ἠέλιόν τε, i. e. towards the East, opp. to πρὸς ζόφον, Hom.; πρὸς ἠῶ τε καὶ ἡλίου ἀνατολάς, opp. to πρὸς ἑσπέρην, Hdt.
2.day, a day, like Lat. soles, Pind., Eur.: so in pl. hot sunny days, Thuc.
II.as prop. n., Helios, the sun-god, Hom.; in later Poets = Apollo, Aesch., etc.