The Collaborative International Dictionary of English v.0.48:
Dormancy \Dor"man*cy\, n. [From Dormant.]
   The state of being dormant; quiescence; abeyance.
   [1913 Webster]
         It is by lying dormant a long time, or being . . . very
         rarely exercised, that arbitrary power steals upon a
         people.                                  --Burke.
   [1913 Webster]
   2. (Her.) In a sleeping posture; as, a lion dormant; --
      distinguished from couchant.
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   Dormant partner (Com.), a partner who takes no share in the
      active business of a company or partnership, but is
      entitled to a share of the profits, and subject to a share
      in losses; -- called also sleeping partner or silent
      partner.
   Dormant window (Arch.), a dormer window. See Dormer.
   Table dormant, a stationary table. [Obs.] --Chaucer.
      [1913 Webster]