Mărĭandȳni — Lewis & Short
Mărĭandȳni, ōrum, m., = *mariandunoi/,
I a people of Bithynia, Mel. 1, 19, 1; 7; 2, 7, 2; Val. Fl. 4, 171; Avien. Descr. Orbis, 960; Mart. Cap. 9, § 924.—Hence, Mărĭ-andȳnus, a, um, adj., of or belonging to the Mariandyni, Mariandynian:
sinus,Plin. 6, 1, 1, § 4:
arenae,Val. Fl. 4, 733.