In most of the world, the name of the holiday celebrating Jesus Christ's resurrection comes from the Hebrew word Pesach, which refers to the Passover holiday.
The English word for this holiday is unique: Easter.
This word comes from the Old English word Eōstre, the name of the pre-Christian English goddess of dawn. It has the same origin as the word East, the direction the dawn comes from.
Eosturmonath -- Eōstre's month -- was the name of the spring holiday honoring Eōstre. When Christianity came to England, Eosturmonath was replaced by Christian holidays, but the old name remained.