saturday Meaning, Definition & Usage

  1. noun the seventh and last day of the week; observed as the Sabbath by Jews and some Christians
    Sabbatum; Sat.

WordNet

Sat"ur*day noun
Etymology
OE. Saterday, AS. Sæterdæg, Sæterndæg, Sæternesdæg, literally, Saturn's day, fr. L. Saturnus Saturn + AS. dæg day; cf. L. dies Saturni.
Definitions
  1. The seventh or last day of the week; the day following Friday and preceding Sunday.

Webster 1913