It enjoyed frequent, everyday use. But this name, that was used so much has now been forgotten. In the next subheading we will discuss it. The Jews developed a superstition that you were not to say Gods name, for, they felt that that would be taking the Name up in a worthless way. So, they stopped using it.
Nobody is sure when they stopped using it, but they did.
C.E. Jewish scholars developed a system of vowel points for the Hebrew text. Because around that time Hebrew was no longer the everyday speech of the people, Greek was. So, these Jewish scholars feared, that because more and more people were forgetting how the Hebrew words were said without vowels that the ancient Hebrew language would be completely forgotten. So, they made these vowel points and the Hebrew language was not lost due to time and disuse. But, the Divine Name was.