Pāṇini sūtras

After words of direction ending in añc, there is luk-elision of the affix astâti.

1. añceḥअञ्चेः

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   aअ	añciअञ्चि	añceḥअञ्चेः	añcअञ्च्	añcअञ्च् + plus eḥएः

2. lukलुक्

   Part	Lexeme	Sandhi form	Meaning	Stem
   lल्	lukलुक्	lukलुक्	suffix elision	lukलुक्

Anuvṛtti

1. astātiḥअस्तातिः 5·3·27

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   aअ	astātiअस्ताति	astātiḥअस्तातिः	astātiअस्ताति	astātअस्तात् + plus iḥइः