I am wondering if anyone can provide the derivation or origin of the term pascua/pascuas? Background: My wife is from Central America and started laughing when she saw a local advertising supplement that translated "Happy Easter" using the term "Pascua," because to her that means "Christmas." After digging around in dictionaries, online forums, and friends from other parts of the Spanish-speaking world, we found that the word is used in both contexts, as well as in a couple of colloquial phrases with no apparent connection to either Christmas or Easter (e.g. "de pascuas a ramos"). I'm guessing that pascua has its origins in a word meaning 'month' or 'festival' or some such, but none of the dictionaries I've consulted have offered the derivation.