Correct spelling for the English word "Rimosity" is [ɹɪmˈɒsɪti], [ɹɪmˈɒsɪti], [ɹ_ɪ_m_ˈɒ_s_ɪ_t_i] (IPA phonetic alphabet).
The state of being rimous or chinky.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.