Pāṇini sūtras

Here in this Third Book of Grammar referring to verbal roots, the word implied in a term exhibited in the locative case, is called ‘upapada’ or dependant word.

1. tatra+upapadamतत्र+उपपदम्

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   tत्	tatraतत्र	tatraतत्र	there	tatraतत्र
   uउ	upapadaउपपद	upapadamउपपदम्	modifier	upapadउपपद् + plus amअम्

2. saptamī+sthamसप्तमी+स्थम्

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   sस्	saptamīसप्तमी	saptamīसप्तमी	locative	saptamसप्तम् + plus īई
   sस्	sthaस्थ	sthamस्थम्	located	sthस्थ् + plus amअम्