Ammas is evidently the Greek form of the Chaldee Ama, "Mother."
This also accounts for the origin of the very same confusion of relationship between Isis and Osiris, the mother and child of the Egyptians; for as Bunsen shows, Osiris was represented in Egypt as at once the son and husband of his mother; and actually bore, as one of his titles of dignity and honour, the name "Husband of the Mother." * This still further casts light on the fact already noticed, that the Indian God Iswara is represented as a babe at the breast of his own wife Isi, or Parvati. * BUNSEN. It may be observed that this very name "Husband of the Mother," given to Osiris, seems even at this day to be in common use among ourselves, although there is not the least suspicion of the meaning of the term, or whence it has come. Herodotus mentions that when in Egypt, he was astonished to hear the very same mournful but ravishing "Song of Linus," sung by the Egyptians (although under another name), which he had been accustomed to hear in his own native land of Greece. Linus was the same god as the Bacchus of Greece, or Osiris of Egypt; for Homer introduces a boy singing the song of Linus, while the vintage is going on (Ilias), and the Scholiast says that this son was sung in memory of Linus, who was torn in pieces by dogs. The epithet "dogs," applied to those who tore Linus in pieces, is evidently used in a mystical sense, and it will afterwards been seen how thoroughly the other name by which he is known--Narcissus--identifies him with the Greek Bacchus and Egyptian Osiris. In some places in Egypt, for the song of Linus or Osiris, a peculiar melody seems to have been used. Savary says that, in the temple of Abydos, "the priest repeated the seven vowels in the form of hymns, and that musicians were forbid to enter it." (Letters) Strabo, whom Savary refers to, calls the god of that temple Memnon, but we learn from Wilkinson that Osiris was the great god of Abydos, whence it is evident that Memnon and Osiris were only different names of the same divinity. Now the name of Linus or Osiris, as the "husband of his mother," in Egypt, was Kamut (BUNSEN). When Gregory the Great introduced into the Church of Rome what are now called the Gregorian Chants, he got them from the Chaldean mysteries, which had long been established in Rome; for the Roman Catholic priest, Eustace, admits that these chants were largely composed of "Lydian and Phrygian tunes" (Classical Tour), Lydia and Phrygia being among the chief seats in later times of those mysteries, of which the Egyptian mysteries were only a branch. These tunes were sacred--the music of the great god, and in introducing them Gregory introduced the music of Kamut.