Declension table of ?kvathana

Neuter	Singular	Dual	Plural
Nominative	kvathanam	kvathane	kvathanāni
Vocative	kvathana	kvathane	kvathanāni
Accusative	kvathanam	kvathane	kvathanāni
Instrumental	kvathanena	kvathanābhyām	kvathanaiḥ
Dative	kvathanāya	kvathanābhyām	kvathanebhyaḥ
Ablative	kvathanāt	kvathanābhyām	kvathanebhyaḥ
Genitive	kvathanasya	kvathanayoḥ	kvathanānām
Locative	kvathane	kvathanayoḥ	kvathaneṣu

Compound kvathana -

Adverb -kvathanam -kvathanāt