Declension table of prastha

Neuter	Singular	Dual	Plural
Nominative	prastham	prasthe	prasthāni
Vocative	prastha	prasthe	prasthāni
Accusative	prastham	prasthe	prasthāni
Instrumental	prasthena	prasthābhyām	prasthaiḥ
Dative	prasthāya	prasthābhyām	prasthebhyaḥ
Ablative	prasthāt	prasthābhyām	prasthebhyaḥ
Genitive	prasthasya	prasthayoḥ	prasthānām
Locative	prasthe	prasthayoḥ	prastheṣu

Compound prastha -

Adverb -prastham -prasthāt