undern

noun5

1. •
   (dialect, UK) A light meal, particularly in the afternoon.
2. •
   (dialect, UK) Synonym of afternoon.
3. •
   (dialect, UK) Synonym of evening.
4. •
   (no longer used) Synonym of noon: the sixth hour of daylight (12 pm).
5. •
   (no longer used) Synonym of terce: the third hour of daylight (about 9 am).