Declension table of ?tathyavādin

Masculine	Singular	Dual	Plural
Nominative	tathyavādī	tathyavādinau	tathyavādinaḥ
Vocative	tathyavādin	tathyavādinau	tathyavādinaḥ
Accusative	tathyavādinam	tathyavādinau	tathyavādinaḥ
Instrumental	tathyavādinā	tathyavādibhyām	tathyavādibhiḥ
Dative	tathyavādine	tathyavādibhyām	tathyavādibhyaḥ
Ablative	tathyavādinaḥ	tathyavādibhyām	tathyavādibhyaḥ
Genitive	tathyavādinaḥ	tathyavādinoḥ	tathyavādinām
Locative	tathyavādini	tathyavādinoḥ	tathyavādiṣu

Compound tathyavādi -

Adverb -tathyavādi