Foras
In
demonology Foras is a powerful Great President of
Hell, being obeyed by twenty-nine legions of demons. He teaches
Logic and
Ethics in all their branches, the virtues of all herbs and precious stones, can make a man witty, eloquent, invisible (invincible according to some authors) and to live long, and can discover treasures and recover lost things.
He is depicted as a strong man.
His name seems to derive from Latin 'foras', out, outside.
Other spellings: Forcas, Forras.
See also The Lesser Key of Solomon, Ars Goetia.