Declension table of ?dyāvāpṛthivīya

Neuter	Singular	Dual	Plural
Nominative	dyāvāpṛthivīyam	dyāvāpṛthivīye	dyāvāpṛthivīyāni
Vocative	dyāvāpṛthivīya	dyāvāpṛthivīye	dyāvāpṛthivīyāni
Accusative	dyāvāpṛthivīyam	dyāvāpṛthivīye	dyāvāpṛthivīyāni
Instrumental	dyāvāpṛthivīyena	dyāvāpṛthivīyābhyām	dyāvāpṛthivīyaiḥ
Dative	dyāvāpṛthivīyāya	dyāvāpṛthivīyābhyām	dyāvāpṛthivīyebhyaḥ
Ablative	dyāvāpṛthivīyāt	dyāvāpṛthivīyābhyām	dyāvāpṛthivīyebhyaḥ
Genitive	dyāvāpṛthivīyasya	dyāvāpṛthivīyayoḥ	dyāvāpṛthivīyānām
Locative	dyāvāpṛthivīye	dyāvāpṛthivīyayoḥ	dyāvāpṛthivīyeṣu

Compound dyāvāpṛthivīya -

Adverb -dyāvāpṛthivīyam -dyāvāpṛthivīyāt