Pāṇini sūtras

The affix ṭhan (±/­ika) comes after a word denoting time, being in the third case in construction, in the sense of “to be accomplished by that time”.

1. tenaतेन

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   tत्	tadतद्	tenaतेन	instrumental	tadतद् + plus aअ

2. nirvṛttamनिर्वृत्तम्

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   nन्	nirvṛtनिर्वृत्	nirvṛttamनिर्वृत्तम्	complete	nirvṛttनिर्वृत्त् + plus amअम्

Anuvṛtti

1. ṭhañठञ् 5·1·18

   Part	Lexeme	Sandhi form	Meaning	Stem
   ṭट्	ṭhañठञ्	ṭhañठञ्	ṭhañठञ्	ṭhañठञ्

2. kālātकालात् 5·1·78

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   kक्	kālaकाल	kālātकालात्	time	kālकाल् + plus ātआत्