4 occurrences across the corpus

Sefer haYashar (Book of Jasher)

The Book of Jasher 18:33

And the man was provoked at the words of Hedad, and he cried bitterly, and he brought Hedad to Serak judge of Sodom.

The Book of Jasher 18:34

And the man laid his cause before Serak the judge, when Hedad replied, saying, It is not so, but thus the matter stands; and the judge said to the traveler, This man Hedad telleth thee truth, for he is famed in the cities for the accurate interpretation of dreams.

The Book of Jasher 19:1

And the cities of Sodom had four judges to four cities, and these were their names, Serak in the city of Sodom, Sharkad in Gomorrah, Zabnac in Admah, and Menon in Zeboyim.

The Book of Jasher 19:2

And Eliezer Abraham's servant applied to them different names, and he converted Serak to Shakra, Sharkad to Shakrura, Zebnac to Kezobim, and Menon to Matzlodin.