undecennary

Look at other dictionaries:

• Undecennary — Un de*cen na*ry, a. [L. undecim eleven (unus one + decem ten) + ennary as in decennary. Cf. {Undecennial}.] Occurring once in every period of eleven years; undecennial. [1913 Webster] An undecennary account laid before Parliament. E. Stiles.… …   The Collaborative International Dictionary of English

• Undecennial — Un de*cen ni*al, a. [See {Undecennary}, and cf. {Decennial}.] Occurring or observed every eleventh year; belonging to, or continuing, a period of eleven years; undecennary; as, an undecennial festival. [1913 Webster] …   The Collaborative International Dictionary of English