For something (actor CVCV- + -um-) to bob up and down, of hair in walking; a short loincloth tail, i'wītan; the stomach pouch of a skirt; sheaves strung on a pole when walking.
Yumabbuyabbūyab han imbatāwel Aligūyun.
That which Aligūyun balanced on a pole on his shoulder is bobbing up and down.
CVCV- + -um-: yumabbuyabbūyab