Declension table of ?trayodaśin

Neuter	Singular	Dual	Plural
Nominative	trayodaśi	trayodaśinī	trayodaśīni
Vocative	trayodaśin trayodaśi	trayodaśinī	trayodaśīni
Accusative	trayodaśi	trayodaśinī	trayodaśīni
Instrumental	trayodaśinā	trayodaśibhyām	trayodaśibhiḥ
Dative	trayodaśine	trayodaśibhyām	trayodaśibhyaḥ
Ablative	trayodaśinaḥ	trayodaśibhyām	trayodaśibhyaḥ
Genitive	trayodaśinaḥ	trayodaśinoḥ	trayodaśinām
Locative	trayodaśini	trayodaśinoḥ	trayodaśiṣu

Compound trayodaśi -

Adverb -trayodaśi