Declension table of ?saṃsahasra

Neuter	Singular	Dual	Plural
Nominative	saṃsahasram	saṃsahasre	saṃsahasrāṇi
Vocative	saṃsahasra	saṃsahasre	saṃsahasrāṇi
Accusative	saṃsahasram	saṃsahasre	saṃsahasrāṇi
Instrumental	saṃsahasreṇa	saṃsahasrābhyām	saṃsahasraiḥ
Dative	saṃsahasrāya	saṃsahasrābhyām	saṃsahasrebhyaḥ
Ablative	saṃsahasrāt	saṃsahasrābhyām	saṃsahasrebhyaḥ
Genitive	saṃsahasrasya	saṃsahasrayoḥ	saṃsahasrāṇām
Locative	saṃsahasre	saṃsahasrayoḥ	saṃsahasreṣu

Compound saṃsahasra -

Adverb -saṃsahasram -saṃsahasrāt