Declension table of ?prasthānaka

Neuter	Singular	Dual	Plural
Nominative	prasthānakam	prasthānake	prasthānakāni
Vocative	prasthānaka	prasthānake	prasthānakāni
Accusative	prasthānakam	prasthānake	prasthānakāni
Instrumental	prasthānakena	prasthānakābhyām	prasthānakaiḥ
Dative	prasthānakāya	prasthānakābhyām	prasthānakebhyaḥ
Ablative	prasthānakāt	prasthānakābhyām	prasthānakebhyaḥ
Genitive	prasthānakasya	prasthānakayoḥ	prasthānakānām
Locative	prasthānake	prasthānakayoḥ	prasthānakeṣu

Compound prasthānaka -

Adverb -prasthānakam -prasthānakāt