Declension table of ?dvaisandhya

Neuter	Singular	Dual	Plural
Nominative	dvaisandhyam	dvaisandhye	dvaisandhyāni
Vocative	dvaisandhya	dvaisandhye	dvaisandhyāni
Accusative	dvaisandhyam	dvaisandhye	dvaisandhyāni
Instrumental	dvaisandhyena	dvaisandhyābhyām	dvaisandhyaiḥ
Dative	dvaisandhyāya	dvaisandhyābhyām	dvaisandhyebhyaḥ
Ablative	dvaisandhyāt	dvaisandhyābhyām	dvaisandhyebhyaḥ
Genitive	dvaisandhyasya	dvaisandhyayoḥ	dvaisandhyānām
Locative	dvaisandhye	dvaisandhyayoḥ	dvaisandhyeṣu

Compound dvaisandhya -

Adverb -dvaisandhyam -dvaisandhyāt