Pāṇini sūtras

Before the word vāṇija ‘a trader’, the first member of a Tatpurusha preserves its accent, when it is a word specifying the place whither one has to go, or the ware in which one deals.

1. gantavya+paṇyamगन्तव्य+पण्यम्

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   gग्	gamगम्	gantavyaगन्तव्य	goगो	gantavyगन्तव्य् + plus aअ
   pप्	paṇyaपण्य	paṇyamपण्यम्	commodity	paṇyपण्य् + plus amअम्

2. vāṇijeवाणिजे

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   vव्	vāṇijaवाणिज	vāṇijeवाणिजे	vāṇija [word]वाणिज [wओर्द्]	vāṇijवाणिज् + plus eए

Anuvṛtti

1. pūrva+padamपूर्व+पदम् 6·2·1

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   pप्	pūrvaपूर्व	pūrvaपूर्व	antecedent	pūrvaपूर्व
   pप्	padaपद	padamपदम्	word	padपद् + plus amअम्

2. tatpuruṣeतत्पुरुषे 6·2·2

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   tत्	tatpuruṣaतत्पुरुष	tatpuruṣeतत्पुरुषे	tatpuruṣaतत्पुरुष	tatpuruṣतत्पुरुष् + plus eए