Declension table of ?pṛthivyupara

Masculine	Singular	Dual	Plural
Nominative	pṛthivyuparaḥ	pṛthivyuparau	pṛthivyuparāḥ
Vocative	pṛthivyupara	pṛthivyuparau	pṛthivyuparāḥ
Accusative	pṛthivyuparam	pṛthivyuparau	pṛthivyuparān
Instrumental	pṛthivyupareṇa	pṛthivyuparābhyām	pṛthivyuparaiḥ pṛthivyuparebhiḥ
Dative	pṛthivyuparāya	pṛthivyuparābhyām	pṛthivyuparebhyaḥ
Ablative	pṛthivyuparāt	pṛthivyuparābhyām	pṛthivyuparebhyaḥ
Genitive	pṛthivyuparasya	pṛthivyuparayoḥ	pṛthivyuparāṇām
Locative	pṛthivyupare	pṛthivyuparayoḥ	pṛthivyupareṣu

Compound pṛthivyupara -

Adverb -pṛthivyuparam -pṛthivyuparāt