[127] On which account it appears to me that they also originally gave letters their names, and acting as became wise men, did give the name to the number seven from the respect[8] they had for it, and from regard to the dignity inherent in it. But the Romans, adding the letter S, which had been omitted by the Greeks, show still more conspicuously the correct etymological meaning of the word, calling it septem, as derived from σεμνὸς, venerable, as has been said before, and from σεβασμὸς, veneration.