The Spanish word for Easter, Pascua, which is usually capitalized, did not always refer to the Christian holy day commemorating the Resurrection of Christ. The word predates Christianity and originally refers to a holy day of the ancient Hebrews. And these days, in context, it can refer to religious holidays other than Easter, even Christmas.
In addition to holidays, the word Pascua can also be used in common Spanish idiomatic expressions, like the English expression, "once in a blue moon," translated into Spanish as, de Pascuas a Ramos.