Saturday comes from Old English Sæterndæg meaning "Saturn's day", Saturn being the Roman god of agriculture and fertility in Roman mythology. The name seems to be derived from Latin satus (sowing, planting) which ultimately derives from PIE root word *seh₁- (to sow, to plant), though it’s also possible that the name comes from Etruscan Satre, the name of an Etruscan god, his name…