Английский Этимологический словарь - sunday

- O.E. Sunnandжg, lit. "day of the sun," from sunnan, oblique case of sunne "sun" + dжg "day," from a W.Gmc. loan-translation of L. dies solis "day of the sun," which is itself a loan-translation of Gk. hemera heliou. Sunday school dates from 1783 (originally for secular instruction); Sunday clothes is from 1642. Sunday driver is from 1925.