Declension table of ?sāṅkathya

Neuter	Singular	Dual	Plural
Nominative	sāṅkathyam	sāṅkathye	sāṅkathyāni
Vocative	sāṅkathya	sāṅkathye	sāṅkathyāni
Accusative	sāṅkathyam	sāṅkathye	sāṅkathyāni
Instrumental	sāṅkathyena	sāṅkathyābhyām	sāṅkathyaiḥ
Dative	sāṅkathyāya	sāṅkathyābhyām	sāṅkathyebhyaḥ
Ablative	sāṅkathyāt	sāṅkathyābhyām	sāṅkathyebhyaḥ
Genitive	sāṅkathyasya	sāṅkathyayoḥ	sāṅkathyānām
Locative	sāṅkathye	sāṅkathyayoḥ	sāṅkathyeṣu

Compound sāṅkathya -

Adverb -sāṅkathyam -sāṅkathyāt