Umm El Qaʻāb (sometimes spelled Umm El Gaʻab) is a burial place for Early Dynasty Period kings in Abydos, Egypt. Its name in Arabic means "Mother of Pots" because there are many broken pieces of pots and dishes all around. In ancient times, people left offerings here, and that's why there are so many pieces left behind.
↑Günter Dreyer: Umm el-Qaab I .: the predynastic royal tomb U-j and its early documents (= Umm el-Qaab, 1st volume). von Zabern, Mainz 1998, ISBN3-8053-2486-3., pp. 87 & 176.