Velación

After seeing the messages about casé y velé I did some searching and I found
some things to add to what has been said previously,

In the dictionary of the Real Academia Española, DRAE, it says the velo is a
band of white cloth placed on the shoulders of the groom and the head of the
bride as a sign of the union they acquired.

* 13. * m. Banda de tela blanca, que en la misa de velaciones se ponía al
marido por los hombros y a la mujer sobre la cabeza, en señal de la unión
que habían contraído.

http://buscon.rae.es/draeI/SrvltConsulta?TIPO_BUS=3&LEMA=velo

Velar is 3. tr. Cubrir con velo. U. t. c. prnl.

On Youtube you can see a Latin mass that has this ceremony and the placing
of this cloth can be seen in the exact same manner as described by the
definition of the Real Academia Española

http://www.youtube.com/watch?v=_OicTTrozME

Saludos
Armando