1. to conclude a speech with a formal recapitulation 2. to speak at great length, often in a grandiloquent manner; declaim

I bumped into this word in The Portrait, a small novel by Iain Pears: “I remember the way you would stab the air with your finger to make a point as you marched along, the way you collapsed on a park bench and fanned yourself with a guidebook as you finished some wordy peroration about the use of public sculpture.”