Declension table of ?knattha

Neuter	Singular	Dual	Plural
Nominative	knattham	knatthe	knatthāni
Vocative	knattha	knatthe	knatthāni
Accusative	knattham	knatthe	knatthāni
Instrumental	knatthena	knatthābhyām	knatthaiḥ
Dative	knatthāya	knatthābhyām	knatthebhyaḥ
Ablative	knatthāt	knatthābhyām	knatthebhyaḥ
Genitive	knatthasya	knatthayoḥ	knatthānām
Locative	knatthe	knatthayoḥ	knattheṣu

Compound knattha -

Adverb -knattham -knatthāt