Zaida

But while Zaida was alive we always went for Seder dinner on the first night of Pesach, the Jewish holiday commemorating the Exodus from Egypt.

The great Rav Akiba showed us, didn't he, Zaida [grandfather in Yiddish]?

Zaida's father, my great-grandfather, was pious and reputed to be a melamed, a learned though poor Orthodox Jew.