Lewis & Short

† dĭezeugmĕnon, i, n., = διεζευγμένον, rhet. t. t. (pure Lat. disjunctum),

  1. I. a separation of equal circumstances, Aquil. Rom. de Fig. 43, p. 187.
  2. II. Plur., musical t. t., = τετράχορδα διεζευγμένα, two tetrachords, forming a scale, Vitr. 5, 4, 5.