the seventh and last day of the week: abbrev. Sat, Sa, or S
Origin of SaturdayMiddle English Saterdai ; from Old English Sæterdæg, akin to Middle Dutch Saterdagh ; from West Germanic half-transl. of Classical Latin Saturni dies, Saturn's day, translated, translation of Classical Greek Kronou h?mera, Cronus' day
Abbr. Sat. or S The day of the week that comes after Friday and before Sunday.
Origin of SaturdayMiddle English, from Old English Sæternesdæg, translation of Latin Saturn&imacron; di&emacron;s : Saturn&imacron;, genitive of Saturnus, Saturn + di&emacron;s, day.