válgame Dios

Etymology
Valga in this context may be an archaism, inherited from an earlier expression in Spanish back when the language still retained some of the many meanings of, one of its meanings being "to be well, to be healthy". comes from that word. If so, the expression means "may God give me health" or "may God let me be healthy".

Interjection

 * 1) dear God! good heavens!
 * 2) * 2003, Congreso Internacional Comida y Literatura, En gustos se comen géneros, 426:
 * "es"

- ¡Válgame Dios! ¿El libre se come? ¿Quién podrá tragarse un tomo entero? ¿Que libre es este? ¿Que ha de ser?