wid·der·shins (wĭd'ər-shĭnz') or with·er·shins (wĭTH'-)
In a contrary or counterclockwise direction: “The coracle whirled round, clockwise, then widdershins” (Anthony Bailey).
[Middle Low German weddersinnes, from Middle High German widersinnes : wider, back (from Old High German widar) + sinnes, in the direction of (from sin, direction, from Old High German).]
(also withershins) [adj] moving in a counterclockwise (or left-handed) direction, contrary to the apparent course of the sun (considered as unlucky or sinister); unlucky, ill-fated, relating to the occult
Widdershins (sometimes withershins, or widershins) is a word which (usually) means anticlockwise, however in certain circumstances it can be used to refer to a direction which is against the light, i.e. where you are unable to see your shadow. It was considered unlucky in former times to travel in a counterclockwise direction around a church and a number of folk myths make reference to this superstition, e.g. Childe Rowland, where the protagonist and his sister are transported to Elfland after his sister runs widdershins round a church.
The word is frequently used in fiction in incantations etc, as a means of heightening atmosphere on account of the archaic and arcane nature of the word itself.
The Wiccan Rede says, “Widdershins go when the Moon doth wane / And the werewolf howls by the dread wolfsbane.” www.answers.com
widdershins was a perfectly good word before the 'new agers' discovered it and demesne....
de·mesne (dĭ-mān', -mēn')
Law. Possession and use of one's own land.
Manorial land retained for the private use of a feudal lord.
The grounds belonging to a mansion or country house.
An extensive piece of landed property; an estate.
A district; a territory.
A realm; a domain.
[Anglo-French, respelling (probably influenced by French mesne, variant of Anglo-Norman meen, middle, in legal phrase mesne lord, lord who holds a manor of a superior lord) of Middle English demeine, from Anglo-Norman, from Old French demaine. See domain.
used in every swords and [Yawn] sorcery book ever written.