Correct spelling for the English word "Mopsey" is [mˈɒpsɪ], [mˈɒpsɪ], [m_ˈɒ_p_s_ɪ] (IPA phonetic alphabet).
A child's baby made up of rags; a puppet made of rags; a term of fondness applied to little girls.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.