As sun-god and god of light, Apollo was also known by the epithets Aegletes (/əˈɡliːtiːz/ ə-GLEE-teez; Αἰγλήτης, Aiglētēs, from αἴγλη, "light of the sun"), Helius (/ˈhiːliəs/ HEE-lee-əs; Ἥλιος, Helios, literally "sun"), Phanaeus (/fəˈniːəs/ fə-NEE-əs; Φαναῖος, Phanaios, literally "giving or bringing light"), and Lyceus (/laɪˈsiːəs/ ly-SEE-əs; Λύκειος, Lykeios, from Proto-Greek *λύκη, "light"). The meaning of the epithet "Lyceus" later became associated with Apollo's mother Leto, who was the patron goddess of Lycia (Λυκία) and who was identified with the wolf (λύκος), earning him the epithets Lycegenes (/laɪˈsɛdʒəniːz/ ly-SEJ-ə-neez; Λυκηγενής, Lukēgenēs, literally "born of a wolf" or "born of Lycia") and Lycoctonus (/laɪˈkɒktənəs/ ly-KOK-tə-nəs; Λυκοκτόνος, Lykoktonos, from λύκος, "wolf", and κτείνειν, "to kill"). As god of the sun, Apollo was called Sol (/ˈsɒl/ SOL, literally "sun" in Latin) by the Romans.