The name Faunus is generally thought to stem from Proto-Italicfawe/fawono, and cognate with Umbrianfons, foner. It ultimately derives from Proto-Indo-European*bʰh₂u-n, from which also derive Old Irishbúan and Middle Welshbun. Another theory claims that Faunus is the Latin outcome of PIE *dhau-no-, thus denoting the 'wolf', since the Luperci are associated with the god Faunus.
Origin
Faunus may be of Indo-European origin and related to the Vedic god Rudra.
Consorts and family
In fable Faunus appears as an old king of Latium, grandson of Saturnus, son of Picus, and father ofLatinus by the nymph Marica. After his death he is raised to the position of a tutelary deity of the land, for his many services to agriculture and cattle-breeding. A goddess of like attributes, called Fauna and Fatua, was associated in his worship. She was regarded as his daughter, wife, or sister. The female deityBona Dea was often equated with Fauna. As Pan was accompanied by the Paniskoi, or little Pans, so the existence of many Fauni was assumed besides the chief Faunus. Fauns are place-spirits of untamed woodland. Educated, Hellenizing Romans connected their fauns with the Greek satyrs, who were wild and orgiastic drunken followers of Dionysus, with a distinct origin.
Equivalence with Pan
With the increasing influence of Greek mythology on Roman mythology in the 3rd and 2nd-centuries BC, the Romans identified their own deities with Greek ones, applying interpretatio romana. Faunus was naturally equated with the god Pan, who was a pastoral god of shepherds who was said to reside in Arcadia. Pan had always been depicted with horns and as such many depictions of Faunus also began to display this trait. However, the two deities were also considered separate by many, for instance, the epic poet Virgil, in his Aeneid, made mention of both Faunus and Pan independently.
Festivals
In Justin's epitome, Faunus is identified with Lupercus, otherwise a priest of Faunus. Livy named Inuus as the god originally worshiped at the Lupercalia, 15 February, when his priests wore goat-skins and hit passers-by with goatskin whips. Two festivals, called Faunalia, were celebrated in his honour—one on 13 February, in the temple of Faunus on the island in the Tiber, the other on 5 December, when the peasants brought him rustic offerings and amused themselves with dancing. A euhemeristic account made Faunus a Latin king, son of Picus and Canens. He was then revered as the god Fatuus after his death, worshipped in a sacred forest outside what is now Tivoli, but had been known since Etruscan times as Tibur, the seat of the Tiburtine Sibyl. His numinous presence was recognized by wolf skins, with wreaths and goblets. In Nonnos' Dionysiaca, Faunus/Phaunos accompanied Dionysus when the god campaigned in India.
Later worship
Faunus was worshipped across the Roman Empire for many centuries. An example of this was a set of thirty-two 4th-century spoons found near Thetford in England in 1979. They had been engraved with the name "Faunus", and each had a different epithet after the god's name. The spoons also bore Christian symbols, and it has been suggested that these were initially Christian but later taken and devoted to Faunus by pagans. The 4th century was a time of large scaleChristianisation, and the discovery provides evidence that even during the decline of traditional Roman religion, the god Faunus was still worshipped. In Gaul, Faunus was identified with the Celtic Dusios.