Vikara

Vikāra (Sanskrit:विकार) basically means – change, change of form, change of mind, disease. It is one of the ten categories of causation listed by Vasubandhu in his Madhyānta-Vibhāga-Bhāśya. In the Sanskrit texts, it is used in the Prātiśākhyas that introduce phonic substitutions by mentioning the substituted unit in the nominative ending and the substitute in the accusative ending.

This keyword could refer to multiple things. Here are some suggestions: