[Sab.bath] n [ME sabat, fr. OF & OE, fr. L sabbatum, fr. Gk sabbaton, fr. Heb shabbath, lit., rest] (bef. 12c) 1 a: the seventh day of the week observed from Friday evening to Saturday evening as a day of rest and worship by Jews and some Christians b: Sunday observed among Christians as a day of rest and worship
2: a time of rest