Pāṇini sūtras

The syllable anaṅ is the substitute of the final of ūdhaṁs in a Bahûvrûhi.

1. ūdhasaḥऊधसः

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   ūऊ	ūdhasऊधस्	ūdhasaḥऊधसः	ūdhas [word]ऊधस् [wओर्द्]	ūdhऊध् + plus asaḥअसः

2. anaṅअनङ्

   Part	Lexeme	Sandhi form	Meaning	Stem
   aअ	anaṅअनङ्	anaṅअनङ्	anaṅअनङ्	anaṅअनङ्

Anuvṛtti

1. samāsa+antāḥसमास+अन्ताः 5·4·68

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   sस्	samāsaसमास	samāsaसमास	Sanskrit compound	samāsसमास् + plus aअ
   aअ	antaअन्त	antāḥअन्ताः	end	antअन्त् + plus āMआM

2. bahuvrīhauबहुव्रीहौ 5·4·113

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   bब्	bahuvrīhiबहुव्रीहि	bahuvrīhauबहुव्रीहौ	bahuvrīhiबहुव्रीहि	bahuvrīhबहुव्रीह् + plus auऔ