hĭrundĭnīnus — Lewis & Short
hĭrundĭnīnus, a, um, adj.id.,
I of or belonging to swallows, swallows' (class.):
sanguis, fel,Plin. 30, 14, 46, § 133:
nidus,Plaut. Rud. 3, 1, 6; Mart. 11, 18, 20.