Pronunciation: [tˈɑːtɪʃ] (IPA)
Correct spelling for the English word "Tartish" is [tˈɑːtɪʃ], [tˈɑːtɪʃ], [t_ˈɑː_t_ɪ_ʃ] (IPA phonetic alphabet).
Somewhat tart.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.