fe·ri·a (fîrē-ə, fĕr-)
n. pl. fe·ri·as or fe·ri·ae (-ē-ē′)
A weekday on a church calendar on which no feast is observed.
[Medieval Latin fēria, ordinary day, weekday, from Late Latin, feast day (used with ordinals to name the days of the week), from Latin fēriae, religious festival, holidays; see dhēs- in the Appendix of Indo-European roots.]
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