Declension table of ?aparvan

Masculine	Singular	Dual	Plural
Nominative	aparvā	aparvāṇau	aparvāṇaḥ
Vocative	aparvan	aparvāṇau	aparvāṇaḥ
Accusative	aparvāṇam	aparvāṇau	aparvaṇaḥ
Instrumental	aparvaṇā	aparvabhyām	aparvabhiḥ
Dative	aparvaṇe	aparvabhyām	aparvabhyaḥ
Ablative	aparvaṇaḥ	aparvabhyām	aparvabhyaḥ
Genitive	aparvaṇaḥ	aparvaṇoḥ	aparvaṇām
Locative	aparvaṇi	aparvaṇoḥ	aparvasu

Compound aparva -

Adverb -aparvam