ostentātor — Lewis & Short
ostentātor, ōris, m.ostento,
I a vain, self-satisfied exhibiter, a displayer, parader, boaster, vaunter:
ostentatores meri,Plaut. Curc. 4, 1, 15:
ostentatorem pecuniae gloriosum describere,Auct. Her. 4, 50, 63:
factorum,Liv. 1, 10:
omnium, quae diceret,Tac. H. 2, 80:
rector juveni et ceteris periculorum praemiorumque ostentator,id. A. 1, 24.