English dictionary
undern
Definitions, examples, synonyms and antonyms from WordNet 3.0.
noun
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The time between; the time between sunrise and noon; specifically, the third hour of the day, or nine o'clock in the morning, according to ancient reckoning; hence, mealtime, because formerly the principal meal was eaten at that hour; also, later, the afternoon; the time between dinner and supper.
Source: webster1913