DICT.TW Dictionary Taiwan

 fe·ria /ˈfɪriə, ˈfɛr-/

 Fe·ri·a n.; pl. Feriæ  Eccl. A week day, esp. a day which is neither a festival nor a fast.
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 feria
      n 1: a weekday on which no festival or holiday is celebrated; "in
           the middle ages feria was used with a prefixed ordinal
           number to designate the day of the week, so `secunda
           feria' meant Monday, but Sunday and Saturday were always
           called by their names, Dominicus and Sabbatum, and so
           feria came to mean an ordinary weekday"
      2: (in Spanish speaking regions) a local festival or fair,
         usually in honor of some patron saint
      [also: feriae (pl)]