exordial
Exordial refers to something that serves as an introduction or beginning. The term originates from the Latin word "exordium," which means the beginning of a speech or composition. In literature and rhetoric, the exordium is the part of a discourse designed to prepare the audience for what is to come and to win their goodwill. It can include elements like a statement of purpose, a brief overview of the topic, or an anecdote to capture attention.
The concept of an exordial phrase or passage is common in various forms of writing and public
In a broader sense, "exordial" can describe anything that marks the start or initiation of a process