Learn how to say Rotundity correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word rotund:
1(of a person) large and plump:
her brother was slim where she was rotund
round or spherical:
huge stoves held great rotund cauldrons
2(of speech or literary style) sonorous; grandiloquent.
late 15th century: from Latin rotundus, from rotare ‘rotate’