It means “its summit never melts”: doo(“not”)akʼi(“on top”)ʼa-(3rd-person indefinite subject pronoun) + yi-(transitional aspect denoting change in form) + -ł-(transitive classifier) + -lííd(verb stem meaning to melt off)
One of the six sacred mountains of the Navajo. Dookʼoʼoosłííd, associated with diichiłí (abalone) and the color yellow, marks the western boundary of Dinétah.