Origin and history of supperless

Old English læs (adv.) "less, lest;" læssa (adj.) "less, smaller, fewer" (Northumbrian leassa), from Proto-Germanic *laisizan (source also of Old Saxon, Old Frisian les "less;" Middle Dutch lise "soft, gentle," German leise "soft"), from PIE root *leis- (2) "small" (source also of Lithuanian liesas "thin") + comparative suffix.

From the first, the adverb has been used often with negatives (none the less). Much less "still more undesirable" is from 1630s. Formerly also "younger," as a translation of Latin minor, a sense now obsolete except in James the Less. Used as a comparative of little, but not related to it. The noun is Old English læsse.

mid-13c., soper, "evening repast, the last meal of the day," from Old French soper, soupper "evening meal," noun use of infinitive soper "to eat the evening meal," which is of Germanic origin (see sup (v.1)).

Formerly, the last of the three meals of the day (breakfast, dinner, and supper); now applied to the last substantial meal of the day when dinner is taken in the middle of the day, or to a late meal following an early evening dinner. Supper is usually a less formal meal than late dinner. [OED]

In Biblical use, the principal meal of the day, corresponding to the Greek deipnon, Roman cena. Applied since c. 1300 to the last meal of Christ with his disciples before his crucifixion, at which he instituted the Eucharist.