"
In Tzuba the expression of movement downward
as expressed by the stationary observer on the 
ground is tlel meaning "less up" and the
movement upward utze meaning "less down".
When movement stops the object is said to be
eiher up (áte) or down (ût) but these carry the
suffix cling to express what is thought of as a
circular journey (however small) completed. So
àtecling expressed an upward journey completed
as utcling a journey downwards. So: ûtcling na tzaba
na nabnana stló,  "The bird has landed on the
ground."
"

A Tour Of The Lattice
Maurice Scully