Oddly enough, I found some glimmering of this while watching Manor House (or Edwardian Country House. For Sir Whatsis and his family, dinner was eaten in the evening and was their grandest meal. Plebian servants were required to “sup” in the evening (have a non-elaborate evening meal), thus they had supper in the evening. Their dinner (best meal) was noon-ish (or afternoon).
Thus, for the upper crust of Edwardian England, it was “breakfast, luncheon, and dinner”. For mere servants, it was “breakfast, dinner, and supper”. (I’m not counting teas, elevenses, or other eating events here.)
From the American Heritage Dictonary:
Breakfast: Middle English brekfast : breken, to break; see break + faste, a fast (from Old Norse fasta, to fast; see past- in Appendix I).
Lunch: Contraction from luncheon
Luncheon: Probably alteration (influenced by dialectal lunch, hunk of cheese or bread) of obsolete nuncheon, light snack, from Middle English nonshench : none, noon; see noon + schench, drink (from Old English scenc, from scencan, to pour out).
Dinner: Middle English diner, morning meal, from Old French disner, diner, to dine, morning meal. See dine. Eating foods such as pizza and ice cream for breakfast may be justified etymologically. In Middle English dinner meant “breakfast,” as did the Old French word disner, or diner, which was the source of our word. The Old French word came from the Vulgar Latin word *disinre, meaning “to break one’s fast; that is, to eat one’s first meal,”
Supper: Middle English, from Old French souper, to sup, supper. See sup (and sup meant “to eat an evening meal”, derived from Middle French for “soup”).