Declension table of ?antarastha

Neuter	Singular	Dual	Plural
Nominative	antarastham	antarasthe	antarasthāni
Vocative	antarastha	antarasthe	antarasthāni
Accusative	antarastham	antarasthe	antarasthāni
Instrumental	antarasthena	antarasthābhyām	antarasthaiḥ
Dative	antarasthāya	antarasthābhyām	antarasthebhyaḥ
Ablative	antarasthāt	antarasthābhyām	antarasthebhyaḥ
Genitive	antarasthasya	antarasthayoḥ	antarasthānām
Locative	antarasthe	antarasthayoḥ	antarastheṣu

Compound antarastha -

Adverb -antarastham -antarasthāt