lev is attested as a proper name in the designation “inhabitants of Leb-kamai.”

The attested use presents lev as a proper name in the designation for the inhabitants of Leb-kamai in Jeremiah 51:1.

1. Proper name in an inhabitant designation · dominant

   In Jeremiah 51:1, the form לֵב is tagged as a proper noun and occurs in the designation that the APB renders “the inhabitants of Leb-kamai,” within the announcement of a destroying spirit raised against Babylon and those inhabitants.

   Jeremiah 51:1

In the Anselm Project Bible: In Jeremiah 51:1, the APB includes the term in “the inhabitants of Leb-kamai.” It does not support a finer rendering claim.