perspicience

from The Collaborative International Dictionary of English v.0.48

Perspicience \Per*spi"cience\ (p[~e]r*sp[i^]sh"ens), n. [L.
   perspicientia, fr. perspiciens, p. p. of perspicere. See
   {Perspective}.]
   The act of looking sharply. [Obs.] --Bailey.
   [1913 Webster]