Declension table of ?jalastha

Neuter	Singular	Dual	Plural
Nominative	jalastham	jalasthe	jalasthāni
Vocative	jalastha	jalasthe	jalasthāni
Accusative	jalastham	jalasthe	jalasthāni
Instrumental	jalasthena	jalasthābhyām	jalasthaiḥ
Dative	jalasthāya	jalasthābhyām	jalasthebhyaḥ
Ablative	jalasthāt	jalasthābhyām	jalasthebhyaḥ
Genitive	jalasthasya	jalasthayoḥ	jalasthānām
Locative	jalasthe	jalasthayoḥ	jalastheṣu

Compound jalastha -

Adverb -jalastham -jalasthāt