miv.tsar is used as a proper name in lists of chiefs.

The attested form is used as a proper name in parallel lists naming chiefs, where it appears alongside Kenaz and Teman.

1. Proper name in a list of chiefs · dominant

   In Genesis 36:42, the form is tagged Noun · Proper and occurs in the sequence “Chief Kenaz, chief Teman, chief Mibzar.” The same proper-name use appears in 1 Chronicles 1:53, where the APB renders the list “chief Kenaz, chief Teman, chief Mibzar,”.

   Genesis 36:421 Chronicles 1:53

In the Anselm Project Bible: Across both cited verses, the APB presents the name as “Mibzar” within a list of chiefs. It confirms the list context rather than supplying an independent lexical definition.