proem /prōˈem/

1. An introduction
2. A prelude
3. A preface

proemial /prō-ēˈmi-əl/ adjective

• graded posts
• gradely
• grader
• graders
• grades
• grade school
• grade schools
• grade separation
• grade separations
• Gradgrind
• Gradgrindery
• gradient
• gradienter
• gradienters
• gradients
• gradin
• gradine
• gradines
• grading
• gradings
• grading system
• grading systems
• gradini
• gradino
• gradins