YALI: a Fremen's personal quarters within the sietch.

YA! YA! YAWM!: Fremen chanting cadence used in time of deep ritual significance. Ya carries the root meaning of "Now pay attention!" The yawm form is a modified term calling for urgent immediacy. The chant is usually translated as "Now, hear this!"

Z

ZENSUNNI: followers of a schismatic sect that broke away from the teachings of Maometh (the so-called "Third Muhammed") about 1381 B.G. The Zensunni religion is noted chiefly for its emphasis on the mystical and a reversion to "the ways of the fathers." Most scholars name Ali Ben Ohashi as leader of the original schism but there is some evidence that Ohashi may have been merely the male spokesman for his second wife, Nisai.