Declension table of ?aparvan

Neuter	Singular	Dual	Plural
Nominative	aparva	aparvṇī aparvaṇī	aparvāṇi
Vocative	aparvan aparva	aparvṇī aparvaṇī	aparvāṇi
Accusative	aparva	aparvṇī aparvaṇī	aparvāṇi
Instrumental	aparvaṇā	aparvabhyām	aparvabhiḥ
Dative	aparvaṇe	aparvabhyām	aparvabhyaḥ
Ablative	aparvaṇaḥ	aparvabhyām	aparvabhyaḥ
Genitive	aparvaṇaḥ	aparvaṇoḥ	aparvaṇām
Locative	aparvaṇi	aparvaṇoḥ	aparvasu

Compound aparva -

Adverb -aparva -aparvam