"youthfulness," is found in England and Gaul, equated with Apollo, who
himself is called _Bonus Puer_ in a Dacian inscription. Another god
Mogons or Mogounos, whose name is derived from _Mago_, "to increase,"
and suggests the idea of youthful strength, may be a form of the
sun-god, though some evidence points to his having been a sky-god.[67]

The Celtic Apollo is referred to by classical writers. Diodorus speaks
of his circular temple in an island of the Hyperboreans, adorned with
votive offerings. The kings of the city where the temple stood, and its
overseers, were called "Boreads," and every nineteenth year the god
appeared dancing in the sky at the spring equinox.[68] The
identifications of the temple with Stonehenge and of the Boreads with
the Bards are quite hypothetical. Apollonius says that the Celts
regarded the waters of Eridanus as due to the tears of Apollo--probably
a native myth attributing the creation of springs and rivers to the
tears of a god, equated by the Greeks with Apollo.[69] The Celtic
sun-god, as has been seen, was a god of healing springs.

Some sixty names or titles of Celtic war-gods are known, generally
equated with Mars.[70] These were probably local tribal divinities
regarded as leading their worshippers to battle. Some of the names show
that these gods were thought of as mighty warriors, e.g. Caturix,
"battle-king," Belatu-Cadros--a common name in Britain--perhaps meaning
"comely in slaughter,"[71] and Albiorix, "world-king."[72] Another name,
Rigisamus, from _rix_ and _samus_, "like to," gives the idea of
"king-like."[73]

Toutatis, Totatis, and Tutatis are found in inscriptions from Seckau,
York, and Old Carlisle, and may be identified with Lucan's Teutates, who
with Taranis and Esus mentioned by him, is regarded as one of three