Declension table of ?trayodaśamāsa

Masculine	Singular	Dual	Plural
Nominative	trayodaśamāsaḥ	trayodaśamāsau	trayodaśamāsāḥ
Vocative	trayodaśamāsa	trayodaśamāsau	trayodaśamāsāḥ
Accusative	trayodaśamāsam	trayodaśamāsau	trayodaśamāsān
Instrumental	trayodaśamāsena	trayodaśamāsābhyām	trayodaśamāsaiḥ trayodaśamāsebhiḥ
Dative	trayodaśamāsāya	trayodaśamāsābhyām	trayodaśamāsebhyaḥ
Ablative	trayodaśamāsāt	trayodaśamāsābhyām	trayodaśamāsebhyaḥ
Genitive	trayodaśamāsasya	trayodaśamāsayoḥ	trayodaśamāsānām
Locative	trayodaśamāse	trayodaśamāsayoḥ	trayodaśamāseṣu

Compound trayodaśamāsa -

Adverb -trayodaśamāsam -trayodaśamāsāt