ya.gur is attested as the proper name of a city in Judah's southern boundary list.

The attested use is a proper place name in a list of Judahite cities toward the border of Edom.

1. Place name in Judah's city list · dominant

   In Joshua 15:21, the form is tagged as a proper noun and appears among named cities at the extremity of Judah toward the border of Edom; the APB renders the list as including “Kabzeel, Eder, and Jagur.”

   Joshua 15:21

In the Anselm Project Bible: In Joshua 15:21, the APB presents the term as “Jagur” in a list of cities. It confirms the verse's place-list context rather than supplying a fuller lexical sense.