Merry Meet Bear,
Thanks for your reply!
In English the spelling of the
word "faery" has been mutable as the faeries themselves. In early
Britain, the Anglo-Saxons would have called such a creature by the
name of aelf (elf), yet by Chaucer's time the term "faery" appears
to be in common usage. By the seventeenth century we find quite an
eclectic array of f-words: farie folk, fairfolks, farefolkis,
pharie, phaereis, farie, fairy, fairie, fairye, and faery. While no
single name is more "true" than any other, for simplicity "Faery"
(or "Faeryland" ) to mean the land itself, and Faery is synonymous
with the Celtic Otherworld, the Underworld, the Blessed Isles,
Avalon, the Astral Realms, the innerworld-all are aspects fo
Faeryland in shifting, prismatic guise.
The word "faery" originally derived from the Latin fatum, meaning
destiny or enchantment. This word in turn relates to the Fates,
those three omnipotent goddesses who spin, weave, and cut the
threads of a man or a woman's lifetime, governing past, present,
and future. In Norse mythology, the Fates were called the Norns, or
Wyrd. Fatum developed into fee (French) and then into English "fay"
or "fae". An early meaning of faery was "fayerie": the specific
state of enchantment created by a fay.
Hope these information are of use to you
or perhaps you might be interested in reading up some books on
Celtic Mythology or Beliefs! 
Blessed Be,
Oceanos
