Declension table of ?dvaidhya

Neuter	Singular	Dual	Plural
Nominative	dvaidhyam	dvaidhye	dvaidhyāni
Vocative	dvaidhya	dvaidhye	dvaidhyāni
Accusative	dvaidhyam	dvaidhye	dvaidhyāni
Instrumental	dvaidhyena	dvaidhyābhyām	dvaidhyaiḥ
Dative	dvaidhyāya	dvaidhyābhyām	dvaidhyebhyaḥ
Ablative	dvaidhyāt	dvaidhyābhyām	dvaidhyebhyaḥ
Genitive	dvaidhyasya	dvaidhyayoḥ	dvaidhyānām
Locative	dvaidhye	dvaidhyayoḥ	dvaidhyeṣu

Compound dvaidhya -

Adverb -dvaidhyam -dvaidhyāt