pa.ras is the proper name of the realm identified through its kings, laws, rulers, and military forces.

The term is consistently a proper name for a named realm: Cyrus is identified with it, its kings and rulers are mentioned, its laws are named, and it appears among military forces.

1. Named realm in royal, political, and military settings · dominant

   The supplied forms are tagged Noun · Proper throughout. In Ezra 1:2, the term identifies Cyrus in his declaration concerning the kingdoms given to him and the house to be built in Jerusalem; the APB calls him “Cyrus king of Persia.” In Daniel 10:13, it occurs in references to the ruler and kings of the same kingdom, while Ezekiel 27:10 places it among the forces supplying men of battle.

   Ezra 1:2Daniel 10:13Esther 1:19Ezekiel 27:10Ezekiel 38:52 Chronicles 36:22

In the Anselm Project Bible: The APB consistently presents the name as “Persia,” including expressions such as “king of Persia,” “kingdom of Persia,” and “kings of Persia.” These phrases show the verse-level presentation rather than a separate lexical rendering in every clause.