Greek word
sábbaton
σάββατον
What it means
the Sabbath, or day of weekly repose from secular avocations
the Sabbath (i.e. Shabbath), or day of weekly repose from secular avocations (also the observance or institution itself); by extension, a se'nnight, i.e. the interval between two Sabbaths; likewise the plural in all the above applications
Where it comes from
of Hebrew origin (shabbâth)