La palabra del día: Interponer

Verb. From the Latin interponĕre, to place between two or more things.
In Legal Spanish this verb means to formalize by means of a motion any legal resources, such as annulment, appeal, etc. E.g: Esto significa interponer una protesta en la Oficina Europea de Patentes: This means lodging a firm objection with the European Patent Office; …para interponer una acción ante un órgano de apelación u otro órgano revisor establecido en el marco de la Oficina: …for an action before a board of appeal or other review body constituted in the framework of the Office.
The noun is la interposición. dc