Pāṇini sūtras

upari, adhi, and adhas are repeated, when it expresses uninterrupted nearness.

German upari, adhi und adhas um die unmittelbare Nähe anzudeuten. (7)

1. upari+adhi+adhasaḥउपरि+अधि+अधसः

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   uउ	upariउपरि	upariउपरि	upari [word]	upariउपरि
   aअ	adhiअधि	adhiअधि	adhiअधि	adhअध् + plus iइ
   aअ	adhasअधस्	adhasaḥअधसः	adhas [word]	adhasअधस् + plus aḥअः

2. sāmīpyeसामीप्ये

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   sस्	sāmīpyaसामीप्य	sāmīpyeसामीप्ये	nearness	sāmīpyसामीप्य् + plus eए

Anuvṛtti

1. dveद्वे 8·1·1

   Part	Lexeme	Sandhi form	Meaning	Stem
   dद्	dviद्वि	dveद्वे	two	dviद्वि