Correct spelling for the English word "Quadrigenarlous" is [kwˈɒdɹa͡ɪd͡ʒnˌɑːləs], [kwˈɒdɹaɪdʒnˌɑːləs], [k_w_ˈɒ_d_ɹ_aɪ_dʒ_n_ˌɑː_l_ə_s] (IPA phonetic alphabet).
Consisting of four hundred.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.