कु —     सु —

कु  prefix meaning deterioration, depreciation, deficiency, want, littleness, hindrance, reproach, contempt, guilt

कुशासन  m) bad government, maladministration

सु  prefix imparting the meanings of good, beautiful, pretty, excellent, thorough (total, verdadero, absoluto, exhaustivo), well, easy, etc.

सुशासन  m) good government/rule/administration