The Collaborative International Dictionary of English v.0.48:

Horologe \Hor"o*loge\, n. [OE. horologe, orloge, timepiece, OF.
   horloge, orloge, oriloge, F. horloge, L. horologium, fr. Gr.
   ?; ? hour + ? to say, tell. See Hour, and Logic.]
   1. A servant who called out the hours. [Obs.]
      [1913 Webster]

   2. An instrument indicating the time of day; a timepiece of
      any kind; a watch, clock, or dial. --Shak.
      [1913 Webster]

WordNet (r) 3.0 (2006):

horologe
    n 1: a measuring instrument or device for keeping time [syn:
         timepiece, timekeeper, horologe]