1911 Encyclopædia Britannica, Volume 8… (1911)
“ DIONYSUS (probably = “son of Zeus,” from Διός and νῦσος, a Thracian word for “son”) , in Greek mythology, originally a nature god of fruitfulness and vegetation, especially of the vine; hence, distinctively, the god of wine. The names Bacchus (Βάκχος, in use among the Greeks from the 5th century) , Sabazius, and Bassareus, are also Thracian names of the god. The two first (like Iacchus, Bromius and Euios) have been connected with the loud “shout” (σαβάζειν=βάζειν=εὐάζειν) of his worshippers, Bassareus with βασσάραι, the fox-skin garments of the Thracian Bacchanals. ”
