Sabath or Sabbath: How To spell?

The word Sabath is misspelled against Sabbath, a noun meaning "A season or day of rest; one day in seven appointed for rest or worship, the observance of which was enjoined upon the Jews in the Decalogue, and has been continued by the Christian church with a transference of the day observed from the last to the first day of the week, which is called also Lord's Day."