Declension table of ?dvayopaniṣad

Feminine	Singular	Dual	Plural
Nominative	dvayopaniṣat	dvayopaniṣadau	dvayopaniṣadaḥ
Vocative	dvayopaniṣat	dvayopaniṣadau	dvayopaniṣadaḥ
Accusative	dvayopaniṣadam	dvayopaniṣadau	dvayopaniṣadaḥ
Instrumental	dvayopaniṣadā	dvayopaniṣadbhyām	dvayopaniṣadbhiḥ
Dative	dvayopaniṣade	dvayopaniṣadbhyām	dvayopaniṣadbhyaḥ
Ablative	dvayopaniṣadaḥ	dvayopaniṣadbhyām	dvayopaniṣadbhyaḥ
Genitive	dvayopaniṣadaḥ	dvayopaniṣadoḥ	dvayopaniṣadām
Locative	dvayopaniṣadi	dvayopaniṣadoḥ	dvayopaniṣatsu

Compound dvayopaniṣat -

Adverb -dvayopaniṣat