In the front of the 1995 edition of The American Heritage Dictionary, there was an article on “Proto-Indo-European”, the root language of peoples from England to India. Paleolinguists had been trying to reconstruct this long-forgotten language for a couple decades. One sentence stated that the word in this language for “world” was “dheghom”. So, “Dheghemy” could mean “the faith of the world” or more accurately “the faith of what is”.
It is pronounced “DEYG-emmy”. The “H”s are silent.