John Henry Freese and Anonymous, 1911 Encyclopædia Britannica (1911)
“ ORPHEUS, in Greek legend, the chief representative of the art of song and playing on the lyre, and of great importance in the religious history of Greece. The derivation of the name is uncertain, the most probable being that which connects it with ὀρφ- (“dark,” ὀρφναῖος, ὄρφνη) . In accordance with this, Orpheus may have been originally a god of darkness; or the liberator from the power of darkness by his gift of song; or he may have been so called because his rites were celebrated by night (cf. Dionysus Nyctelius) . It is possible, but very improbable, that Orpheus was an historical personage ”
