Pāṇini sūtras

The words puṣya and sidhya are irregularly formed by the affix kyap, when used as names of asterisms.

1. puṣya+sidhyauपुष्य+सिध्यौ

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   pप्	puṣyaपुष्य	puṣyaपुष्य	puṣya [word]पुष्य [wओर्द्]	puṣyपुष्य् + plus aअ
   sस्	sidhyaसिध्य	sidhyauसिध्यौ	sidhya [word]	sidhyसिध्य् + plus auऔ

2. nakṣatreनक्षत्रे

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   nन्	nakṣatraनक्षत्र	nakṣatreनक्षत्रे	NakṣatraNअक्षत्र	nakṣatrनक्षत्र् + plus eए

Anuvṛtti

1. kṛtyāḥकृत्याः 3·1·95

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   kक्	kṛtyaकृत्य	kṛtyāḥकृत्याः	kṛtyaकृत्य	kṛtyकृत्य् + plus āMआM

2. kyapक्यप् 3·1·106

   Part	Lexeme	Sandhi form	Meaning	Stem
   kक्	kyapक्यप्	kyapक्यप्	kyapक्यप्	kyapक्यप्