Declension table of ?kathayāna

Neuter	Singular	Dual	Plural
Nominative	kathayānam	kathayāne	kathayānāni
Vocative	kathayāna	kathayāne	kathayānāni
Accusative	kathayānam	kathayāne	kathayānāni
Instrumental	kathayānena	kathayānābhyām	kathayānaiḥ
Dative	kathayānāya	kathayānābhyām	kathayānebhyaḥ
Ablative	kathayānāt	kathayānābhyām	kathayānebhyaḥ
Genitive	kathayānasya	kathayānayoḥ	kathayānānām
Locative	kathayāne	kathayānayoḥ	kathayāneṣu

Compound kathayāna -

Adverb -kathayānam -kathayānāt