Correct spelling for the English word "Quadrel" is [kwˈɒdɹə͡l], [kwˈɒdɹəl], [k_w_ˈɒ_d_ɹ_əl] (IPA phonetic alphabet).
In arch., a kind of artificial stone or brick made from chalky earth, and moulded into a square form.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.