आङ् in मर्यादा or अभिविधि sense has कर्मप्रवचनीय and निपात status. मर्यादा (limit) implies "excluding" and अभिविधि implies "including". Both have कर्मप्रवचनीय and निपात status - which may lead to पञ्चमी विभक्ति. For example, आमृत्यु (before death - excluding death hence मर्यादा) आजीवन(including life - hence अभिविधि).