Declension table of ?phaṇastha

Neuter	Singular	Dual	Plural
Nominative	phaṇastham	phaṇasthe	phaṇasthāni
Vocative	phaṇastha	phaṇasthe	phaṇasthāni
Accusative	phaṇastham	phaṇasthe	phaṇasthāni
Instrumental	phaṇasthena	phaṇasthābhyām	phaṇasthaiḥ
Dative	phaṇasthāya	phaṇasthābhyām	phaṇasthebhyaḥ
Ablative	phaṇasthāt	phaṇasthābhyām	phaṇasthebhyaḥ
Genitive	phaṇasthasya	phaṇasthayoḥ	phaṇasthānām
Locative	phaṇasthe	phaṇasthayoḥ	phaṇastheṣu

Compound phaṇastha -

Adverb -phaṇastham -phaṇasthāt