Meaning

adjective ostentatiously lofty in style

adjective (of sounds) full and rich

originPIE word *h₁óh₃s The adjective is a learned borrowing from Latin ōre rotundō (“with a round mouth; hence, clear; loud”) (whence English ore rotundo), possibly influenced by rotund (“having a curved, round, or spherical shape; (figurative) of sound: full and rich”). Ōre rotundō is composed of ōre (the ablative singular of ōs (“mouth”), ultimately from Proto-Indo-European *h₁óh₃s (“mouth”)) +…

Etymology from Wiktionary, CC BY-SA 3.0