orotund

From Latin ore rotundo, “with a round mouth,” hence “clear, loud,” from os, oris, “the mouth” + rotundus (“round”).

orotund (comparative more orotund, superlative most orotund)

1. Characterized by fullness, clarity, strength, and smoothness of sound.
2. Pompous; bombastic.
   • 1990, Robert Klitgaard, Tropical Gangsters: One Man's Experience with Development and Decadence in Deepest Africa

     In orotund turns of phrase--indeed, in spiraling helices of phrase; in snarled fishing lines of phrase; in endless small intestines of phrase--the speakers ingeniously explored and invented connections between qwerty, alphabetical filing, and socioeconomic advance.

• (fullness of sound): sonorous; see also Thesaurus:sonorous
• (pompous): pompous; see also Thesaurus:arrogant

• oral

• rotundo, round to