The Collaborative International Dictionary of English v.0.48:

cecity \ce"ci*ty\ (s[=e]"s[i^]*t[y^]), n. [L. caecitas, fr.
   caecus blind: cf. F. c['e]cit['e].]
   Blindness. [R.] --Sir T. Browne.
   [1913 Webster]

WordNet (r) 3.0 (2006):

cecity
    n 1: the state of being blind or lacking sight [syn:
         blindness, sightlessness, cecity]