prefatory

This term describes material that precedes the primary content of a work, acting as a gateway or a framing device. It carries a formal, academic, or professional tone, typically appearing in scholarly journals, legal documents, or literary critiques rather than in casual conversation.

Because it functions as a specialized adjective for introductory elements, it is almost exclusively paired with nouns like remarks, notes, or comments. It differs from the general word introductory by implying a specific structural position at the very beginning of a formal text to set the stage or provide necessary context.