\Un"der*meal`\, n. [AS. under under + m?l part or
portion; cf. AS. underm?l midday. See {Under}, {Meal} a part,
and cf. {Undern}.]
1. The inferior, or after, part of the day; the afternoon.
   [Obs. or Prov. Eng.]
         In undermeals and in mornings.        --Chaucer.
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.