AMPLIFY (2)

Am″pli‐fy (�), v. i. 1. 1. To become larger.
Strait was the way at first, withouten light, But further in did further amplify. Fairfax. 2. 2. To speak largely or copiously; to be diffuse in argument or description; to dilate; to expatiate; — often with on or upon. Watts.
He must often enlarge and amplify upon the subject he handles. South.