Pāṇini sūtras

The augment iṭ is added to the Participial affixes ta and tavant, after kuṣ preceded by nir

1. iṭइट्

   Part	Lexeme	Sandhi form	Meaning	Stem
   iइ	iṭइट्	iṭइट्	iṭइट्	iṭइट्

2. niṣṭhāyāmनिष्ठायाम्

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   nन्	niṣṭhनिष्ठ्	niṣṭhāyāmनिष्ठायाम्	niṣṭhāनिष्ठा	niṣṭhनिष्ठ् + plus āyआय्

Anuvṛtti

1. va+l+ādeḥव+ल्+आदेः 7·2·35

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   vव्	vaव	vaव	vakāraवकार	vव् + plus aअ
   lल्	lल्	lल्	LL	lल्
   āआ	ādiआदि	ādeḥआदेः	first syllable	ādआद् + plus eḥएः

2. kuṣaḥकुषः 7·2·46

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   kक्	kuṣकुष्	kuṣaḥकुषः	kuṣकुष्	kuṣकुष् + plus aḥअः