D defs.my
Entry 2 senses Webster, 1913

Undermeal

· Un·der·meal · IPA
01 n. The inferior, or after, part of the day; the afternoon.
  1. 1.
    The inferior, or after, part of the day; the afternoon.[Obs. or Prov. Eng.]
    “In undermeals and in mornings.” Chaucer.
  2. 2.
    Hence, something occurring or done in the afternoon; esp., an afternoon meal; supper; also, an afternoon nap; a siesta.[Obs. or Prov. Eng.]
    “Another great supper, or undermeal, was made ready for them, coming home from ditching and plowing.” — Withals (1608).
    “I think I am furnished with Cattern [Catharine] pears for one undermeal.” B. Jonson.
    “In a narrower limit than the forty years' undermeal of the seven sleepers.” — Nash.