sunday
1. Sun.day \'s*n-de-\ \-de-z\ n [ME, fr. OE sunnandg; akin to OHG sunnu-ntag Sunday; bo]th fr. a prehistoric WGmc-NGmc compound whose components are represented by OE sunne sun and by OE d g day : the first day of the week : the Christian analogue of the Jewish Sabba th - Sun.days av 2. Sunday aj 1: of, relating to, or associated with Sunday 2: BEST {Sunday suit} 3: AMATEUR, DILETTANTE {Sunday painters} 3. Sunday vi : to spend Sunday {was Sundaying in the country}