[1] : The Collaborative International Dictionary of English v.0.48

ascendancy \ascend"ancy\, ascendance \ascend"ance\, n.
   same as ascendency.
   1913 webster
see also:
ascendency 

[2] : WordNet (r) 2.0

ascendance
     n : the state that exists when one person or group has power
         over another; "her apparent dominance of her husband was
         really her attempt to make him pay attention to her"
         syn: dominance, ascendence, ascendancy, ascendency,
          control
see also:
dominance ascendence ascendancy ascendency control 

Ascendance >> A Words
Ascendance, definition of term: Ascendance
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