The definition of zizit is the fringes that are on the four corners of the tallit, or on the shirts of orthodox Jewish men.(noun)
An example of zizit are the twisted tassels on a Hasidic Jew’s clothing at the waist.
See zizit in Webster's New World College Dictionary
Origin: Yiddish tsitses < Heb tsitsit, tassel (interpreted as pl. in Yiddish) < tsits, blossom < root cc, to blossom, bloom