Decennary
Pronunciation : De*cen"na*ry
Part of Speech : n.;
Etymology : [L. decennium a period of ten years; decem ten + annus a year.]
Definition : 1. A period of ten years.
2. (O. Eng. Law)
Defn: A tithing consisting of ten neighboring families. Burrill.
pl. Decennaries.
Source : Webster's Unabridged Dictionary, 1913