These goddesses and their iconographies frequently mingled. Many combinations such as Hathor-Tefnut, Mut-Sekhmet, and Bastet-Sothis appear in Egyptian texts. Wadjet could sometimes be depicted with a lion head rather than that of a cobra, Nekhbet could take on cobra form as a counterpart of Wadjet, and a great many of these goddesses wore the sun disk on their heads, sometimes with the addition of a uraeus or the cow horns from Hathor's typical headdress. Beginning in the Middle Kingdom, the hieroglyph for a uraeus could be used as a logogram or determinative for the word "goddess" in any context, because virtually any goddess could be linked with the Eye's complex set of attributes.