Correct spelling for the English word "Rudenture" is [ɹuːdˈɛnt͡ʃə], [ɹuːdˈɛntʃə], [ɹ_uː_d_ˈɛ_n_tʃ_ə] (IPA phonetic alphabet).
In arch., the figure of a rope or staff with which the flutings of columns are sometimes filled-also called cabling.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.