Pāṇini sūtras

adḍ is substituted for the Nom. and Acc. singular eudings su and am after the five Pronouns ḍatara &c. (i. e. the stems formed with the affixes 1. ḍatara, and 2. ḍatama, and the stems 3. itara, 4. anya and 5. anyatara).

1. adḍअद्ड्

   Part	Lexeme	Sandhi form	Meaning	Stem
   aअ	adḍअद्ड्	adḍअद्ड्	adḍअद्ड्	adḍअद्ड्

2. ḍatara+ādibhyaḥडतर+आदिभ्यः

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   ḍड्	ḍataraडतर	ḍataraडतर	ḍataraडतर	ḍatarडतर् + plus aअ
   āआ	ādiआदि	ādibhyaḥआदिभ्यः	etc.	ādआद् + plus ibhyãइभ्य̃

3. pañcabhyaḥपञ्चभ्यः

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   pप्	pañcanपञ्चन्	pañcabhyaḥपञ्चभ्यः	five	pañcपञ्च् + plus abhyãअभ्य̃

Anuvṛtti

1. su+amoḥसु+अमोः 7·1·23

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   sस्	suसु	suसु	suसु	sस् + plus uउ
   aअ	amअम्	amoḥअमोः	amअम्	amअम् + plus oḥओः