Declension table of ?atisāṃvatsara

Neuter	Singular	Dual	Plural
Nominative	atisāṃvatsaram	atisāṃvatsare	atisāṃvatsarāṇi
Vocative	atisāṃvatsara	atisāṃvatsare	atisāṃvatsarāṇi
Accusative	atisāṃvatsaram	atisāṃvatsare	atisāṃvatsarāṇi
Instrumental	atisāṃvatsareṇa	atisāṃvatsarābhyām	atisāṃvatsaraiḥ
Dative	atisāṃvatsarāya	atisāṃvatsarābhyām	atisāṃvatsarebhyaḥ
Ablative	atisāṃvatsarāt	atisāṃvatsarābhyām	atisāṃvatsarebhyaḥ
Genitive	atisāṃvatsarasya	atisāṃvatsarayoḥ	atisāṃvatsarāṇām
Locative	atisāṃvatsare	atisāṃvatsarayoḥ	atisāṃvatsareṣu

Compound atisāṃvatsara -

Adverb -atisāṃvatsaram -atisāṃvatsarāt