It is a reverential greeting or it is an unconditional support. It means acceptance, approval, consent, permission, authorization, support, conformity, license-consent. It can also mean greeting, reverence, inclination, courtesy, homage.
1 º _ Pardon, permission; It comes from Latin venia, AE ("favor, consent, forgiveness"). 2 º _ Military greeting placing the hand at the height of the temple, and preferably with the helmet or the cap; The name has the same origin, but the gesture is medieval, as the Knights with armor had to discover his face in a sign of respect to their peers or superiors and for that they held their hand to the helm and kept the visor raised as greeting.