In English there is Pascal-- as in the Pascal Lamb (a name for god, and the main course for many Easter dinners)!
The "pascal lamb" or korban pesach (passover offering, or sacrifice) was a special offering brought on the eve of Pesach. The lamb was slaughtered at the Temple and then cooked in small, portable clay ovens called "tanoorim" or "tanoor" (sing.) in the precincts of Jerusalem. I believe it had to be consumed in the city, but I'm not sure since the Talmud describes these ovens covering the hills all around the city. You bought a lamb with a group of people and only that group could share in eating it. That we invite strangers to join us a the seder is not so much out of charity, but a rememberance that the Temple has been destroyed and we can no longer bring the sacrifice. (Actually, there are plausible arguments that the korban pesach might still be brought in Shiloh, and I have heard there are those who do so.) The offering could not be blemished. One such blemish would be broken bones. Hence the the statement in the Christian liturgy that none of Jesus' bones were broken. According to that tradition, he is the korban pesach.
