Pāṇini sūtras

A case-inflected word denoting ‘colour’ is compounded with another case-inflected word which is in agreement with the former, and also denotes colour, and the compound is Tat-purusha.

1. varṇaḥवर्णः

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   vव्	varṇaवर्ण	varṇaḥवर्णः	color	varṇवर्ण् + plus aḥअः

2. varṇenaवर्णेन

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   vव्	varṇaवर्ण	varṇenaवर्णेन	color	varṇवर्ण् + plus enaएन

Anuvṛtti

1. samāna+adhikaraṇenaसमान+अधिकरणेन 2·1·49

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   sस्	samānaसमान	samānaसमान	identical	samānसमान् + plus aअ
   aअ	adhikaraṇaअधिकरण	adhikaraṇenaअधिकरणेन	reference	adhikaraṇअधिकरण् + plus enaएन