Glas Ghaibhleann (Glas Ghaibhnann, Glas
Gavlen, Glas Gownach, Glas Gainach, Glas
Gaunach; Fuwch Leathwen Lefrith) Irish
mythological figure. Irish folklore and mythol-
ogy tells of a great COW whose MILK was so plen-
tiful that it could feed multitudes; because of the
100% cream content, its milk made copious
BUTTER as well. The cow was so strong that she
could wander through three of Ireland’s four
PROVINCES in a single day; thus place-names
across the land (usually beginning with Glas, as
in Glasnevin, although also occurring in such
forms as Knockglas, “mountain of the Glas”)
bear testimony to her passage. (Her name
became a common noun for SPRING or stream,
so at times it is difficult to distinguish the origi-
nal intent of such place-names.) As she traveled,
she gave milk to anyone who needed it, filling
whatever vessel they carried, no matter how
large or small. It is possible that the Glas is an
ancient image of the Irish land itself, for Ireland
is occasionally called Druimin Donn Dilis, “the
faithful brown white-backed cow.”
The Glas did not have to have a calf in order
to give milk. Indeed, as much as five years could
pass without the cow calving, yet her milk
flowed unceasingly. Some stories say that she
was a FAIRY beast, belonging to the king of the
Land Under Wave or the OTHERWORLD; other
stories suggest she was the goddess
BÓ FIND, who
took the form of a white cow.
Usually the cow was said to be guarded by a
SMITH named Gaivnin Gow, Gavidin, or simply
Gavin; in Ireland, the smith was said to live
among the rolling hills of Co. Cavan. The smith
kept the Glas’s halter, to which she came unfail-
ingly every night; some legends say that the Glas
was the smith’s enchanted sister or stepsister. In
Ireland place-names associated with the cow are
often found near sites named for the smith.
Some versions of the story name the smith god
GOIBNIU as the owner of the Glas.
Many legends center on plots set in motion
by greedy people who wished to steal the Glas
for their exclusive enrichment, but she invariably
escaped or was freed, bringing her abundance
back to the people. In one story the Glas was
confined by a man within Glen Columkille in
Co. Donegal, but she levitated into the air and,
clearing the high ridges around the glen, disap-
peared into the sky. Since that time, legend
claims, there has been no free milk in Ireland.
Other legends claim that a wicked woman
tried to milk the Glas into a sieve and, angered,
the cow disappeared from earth. Another tale,
from the rocky region called the Burren, says
that someone tried to milk the Glas into a
swallow-hole called Poll na Leamhnachta (“hole
of sweet milk”), but when even the Glas’s
immeasurable milk could not fill the endless
cavity, the exhausted cow disappeared, and she
has never again been seen on the Burren, previ-
ously her favorite pasturage.
The Glas appears in Britain, Scotland, and
Wales under the name of the
DUN COW, whose
mythological background is made clear in
descriptions of her impossible abundance. As in
Ireland, the British Dun Cow was killed by
greed: A WITCH tried to milk her into a mesh,
killing the miraculous beast; a whale rib in
Kirkham, Lancashire, was long said to have been
one of the Dun Cow’s bones. In Wales the cow
was called Fuwch Leathwen Lefrith; she wan-
dered the country, generously giving forth milk
until she reached a valley, Towry, where the res-
idents saw her as potential steak-and-kidney pie.
Before they could slaughter her, she disap-
peared, taking all her abundance with her.
The cosmological and cosmic significance of
this magical cow is reinforced by scholars who
trace the motif to the Indo-European mytholo-
gies of India, where we find cloud cows who rain
milk down upon earth and who, according to the
Rig Veda, were stolen by the demon Vritra, who
wished to bring drought and famine to earth.
This connection of the cow not only with milk
but with water is found in the figure of the river-
and cow-goddess BÓAND, after whom the River
Boyne is named. The connection between cow
and river is further reinforced by descriptions of
the cow’s meandering course across the land,
never traveling less than six miles a day.
Glas Ghaibhleann 215