so.di is attested as the proper name of Gaddiel’s father in a Zebulun tribal listing.

The sole attested use identifies a person as Gaddiel’s father within the listing for the tribe of Zebulun in Numbers 13:10.

1. Personal name in a paternal identification · dominant

   The form is tagged as a proper noun in Numbers 13:10, where it occurs in the identification of Gaddiel as this person’s son; the APB renders the clause “Gaddiel son of Sodi.”

   Numbers 13:10

In the Anselm Project Bible: In Numbers 13:10, the APB presents the name in the paternal phrase “Gaddiel son of Sodi.” The verse is read as a whole, but the clause confirms its use in identifying Gaddiel’s father.