After a neutral aṅga (stem), ī is substituted for the dual endings au of Nominative 1st-Case and Accusative -2nd case.,
Thus कुण्डेः तिष्ठतः, कुण्डे पश्य ॥ कुण्ड + ई = कुण्डे, the अ of कुण्ड required to be elided by 6.4.148. This is, however, not done by the following
Vart:- Prohibition should be stated in the case of the affix शी ॥ Therefore the अ is not elided.
Similarly दधिनी, मधुनी, त्रपुणी, जतुनी ॥ The augment न् is added by 7.1.73.,