Webster's Revised Unabridged Dictionary · 1913

Perspicuity

Perspicuity (pẽr`spi*kū"i*ty) , noun

[Latin perspicuitas: compare French perspicuité.]

1.
The quality or state of being transparent or translucent. [Obsolete] — Sir T. Browne
2.
The quality of being perspicuous to the understanding; clearness of expression or thought.
3.
Sagacity; perspicacity.