"Boromir" was described by Tolkien as a name "of mixed form"; it combines Sindarin "bor(on)-" 'steadfast' and Quenya "míre" 'jewel'.But the Stewards of Gondor also often bore names "remembered in the songs and histories of the First Age", regardless of meaning, and the name "Boromir" did appear during the First Age in "The Silmarillion".