Hebdomadary
Pronunciation : Heb*dom"a*da*ry
Part of Speech : n.
Etymology : [LL. hebdomadarius: cf. F. hebdomadier.] (R. C. Ch.)
Definition : Defn: A member of a chapter or convent, whose week it is to officiate in the choir, and perform other services, which, on extraordinary occasions, are performed by the superiors.
Source : Webster's Unabridged Dictionary, 1913