The Collaborative International Dictionary of English v.0.48:

Dit \Dit\, n. [Ditty.]
   1. A word; a decree. [Obs.]
      [1913 Webster]

   2. A ditty; a song. [Obs.]
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Dit \Dit\, v. t. [AS. dyttan, akin to Icel. ditta.]
   To close up. [Obs.] --Dr. H. More.
   [1913 Webster]

WordNet (r) 3.0 (2006):

dit
    n 1: the shorter of the two telegraphic signals used in Morse
         code [syn: dot, dit]

V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

DIT
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