Dinner
There are two theories as to what this means.
The first maintains that dinner is to déjeûner what priest is to presbyter; and we all know by this time that presbyter is but priest writ large. Dinner, therefore, according to this view is breakfast.
The other theory is that it is a contraction for dixième heure, ten o'clock, the ancient time of dining. There is an old French rhyme to this effect :- Lever à six, diner à dix, Souper à six, coucher à dix, Vous feront vivre dix fois dix.
It is evident that we are fast returning to the ancient Dory dinner-hour. A fashionable dinner is at full tide not far from ten o'clock-only it is now ten at night instead of, as formerly, ten in the morning.