L, luis, the mountain ash in the Ogham. Confers ... - Rodney Mackay

Eric Maple says that the external power of the
universe is summed up in the word “luck.” “Luck is the
unknown goddess, perhaps the first deity ever to have been
conceieved by primitive man, and possibly, when the last
pantheon of the gods has crumbled to dust, she will remain
the single survivor of the ages of faith.” Possibly so, but
“she” is nothing more than the hermaphroditic aspect of
Loki. Loki is recordered as a shape-changer who often
appeared in female form, in fact, he/she was once
impregnatedby Oidin’s stallion while in the body of a mare.
LUACHAIR, rushes, EIr. luchair, “light-maker,” as they were
used as torches, from louk, light, the Lat. lux. Ultimately
traceable to Lugh, the sun-god.
LUACH-TUATHA, LUCHRAIGE, luch, a mouse. But see Lugh.
These folk were called the Lugi by the Romans, and are
believed to have occupied Sutherland proper or at least the
south-eastern part of that shire. Notice the G. luach, having
worth or value. Possibly related to the Gaull. Lougos, a
raven, a black complexioned folk who were once their
neighbours. Interestingly, the people of Lochcarron in Rossshire
were formerly called Fithich dubha Loch Carrann, the
“Black Ravens of Loch Carron,” a supposed reference to
their swarthy complexions. See next.
LUAIN, LUAN, DI-,(je looin), Monday, moon-day. Lat. lux, luna.
The Gaelic may be borrowed from Latin. Note the Ir. phrase
go la an Luain, “until Doomsday” which suggests that the
word once personified the moon-goddess Samh. Obs.
champion, hero, a lamb. Notice that the Samh was
associated with death at the Samhain. Possibly derived
from the Latin luna. The day-name is similar to the Old
Irish luan, the moon” and the French word lundi, or Monday.
"Monday is a good day for changing one's residence, provided
it be from north to south." (Celtic Monthly, p. 162). The
moon goddess was sometimes personified as an lair bahn,
the “white mare of the heavens”. In druidic tradition the
sun was often represented as a bull and moon as a cow.