The Collaborative International Dictionary of English v.0.48:

Cunctation \Cunc*ta"tion\ (k?nk-t?"sh?n), n. [L. cunctatio, fr.
   cunctari, p. p. cunctatus, to delay.]
   Delay; procrastination. [R.] --Carlyle.
   [1913 Webster]

WordNet (r) 3.0 (2006):

cunctation
    n 1: the act of procrastinating; putting off or delaying or
         defering an action to a later time [syn: procrastination,
         cunctation, shillyshally]