Webster's Revised Unabridged Dictionary · 1913

Redundance

Redundance (r?*d?n"dans) , noun

[Latin redundantia: compare French redondance.]

1.
The quality or state of being redundant; superfluity; superabundance; excess.
2.
That which is redundant or in excess; anything superfluous or superabundant.
Labor... throws off redundacies. — Addison
3.
(Law) Surplusage inserted in a pleading which may be rejected by the court without impairing the validity of what remains.

Also: Redundancy