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hebdomadal
Apr. 27th, 2012 07:03 amhebdomadal (heb-DOM-uh-dl) - adj., occurring or appearing every seven days, weekly.
Also, in an obsolete sense, lasting seven days. Not that this isn't rare itself. Contrast with diurnal, daily, from the same source. Borrowed in the early 17th century from Latin hebdomadālis, from hebdomad, a period of seven, from the Greek stem form of hebdomás, week, from hébdomos, seventh, from heptá, seven.
---L.
Also, in an obsolete sense, lasting seven days. Not that this isn't rare itself. Contrast with diurnal, daily, from the same source. Borrowed in the early 17th century from Latin hebdomadālis, from hebdomad, a period of seven, from the Greek stem form of hebdomás, week, from hébdomos, seventh, from heptá, seven.
---L.
