Centum aerei claudunt vectes aeternaque ferri
Robora, nec custos absistit limine Ianus.
Has, ubi certa sedet patribus sententia pugnae,
Ipse Quirinali trabea cinctuque Gabino
Insignis reserat stridentia limina Consul;
Ipse vocat pugnas; sequitur tum cetera pubes,
Aereaque adsensu conspirant cornua rauco.
Vergil, Aen. vii. 607-615.
609 vectes = bolts or bars, prob. from √veh = carry. Cf. vect-īgal.
612 Quir. trabea = in the state robe of Romulus, i.e. the striped robe of state, purple, with white stripes across.