proinos describes the morning quality of the star named in Revelation.

In both attested clauses, the adjective qualifies a star as morning-related: the APB calls it “the bright morning star” in Revelation 22:16 and “the morning star” in Revelation 2:28.

1. Morning designation of a star · dominant

   In Revelation 22:16, the nominative singular masculine form occurs in the identification “the bright morning star,” as the APB renders the clause. In Revelation 2:28, the accusative singular masculine form appears in the promised gift of “the morning star”; both verses show the same star designation.

   Revelation 22:16Revelation 2:28

In the Anselm Project Bible: The APB presents the expression as “the bright morning star” in Revelation 22:16 and “the morning star” in Revelation 2:28. The adjective's precise contribution is inferred from its occurrence with “star” in both clauses.