Declension table of ?bṛhadrathantara

Neuter	Singular	Dual	Plural
Nominative	bṛhadrathantaram	bṛhadrathantare	bṛhadrathantarāṇi
Vocative	bṛhadrathantara	bṛhadrathantare	bṛhadrathantarāṇi
Accusative	bṛhadrathantaram	bṛhadrathantare	bṛhadrathantarāṇi
Instrumental	bṛhadrathantareṇa	bṛhadrathantarābhyām	bṛhadrathantaraiḥ
Dative	bṛhadrathantarāya	bṛhadrathantarābhyām	bṛhadrathantarebhyaḥ
Ablative	bṛhadrathantarāt	bṛhadrathantarābhyām	bṛhadrathantarebhyaḥ
Genitive	bṛhadrathantarasya	bṛhadrathantarayoḥ	bṛhadrathantarāṇām
Locative	bṛhadrathantare	bṛhadrathantarayoḥ	bṛhadrathantareṣu

Compound bṛhadrathantara -

Adverb -bṛhadrathantaram -bṛhadrathantarāt