rotund vs orotund

rotund and orotund both are adjectives.

Word	Noun	Adjective	Verb	Adverb
rotund	No	Yes	No	No
orotund	No	Yes	No	No

As adjectives, rotund and orotund are synonyms defined as:

Other synonyms of rotund include pear-shaped, round.

rotund (adjective)	orotund (adjective)
excessively fat	(of sounds) full and rich
(of sounds) full and rich	ostentatiously lofty in style
spherical in shape