I.the fifteenth (class.): “locus,” Cic. Inv. 1, 54, 105: “quintisdecimis castris,” Liv. 45, 33 fin.: “in libro quintodecimo,” Gell. 1, 16, 11; “often separately: quinto decimo Kal. Dec.,” Col. 11, 2, 88; “and sometimes in reverse order: anno decimo quinto,” Eutr. 1, 19.
quintus-dĕcĭmus , a, um, num. adj.,