Declension table of ?aupasandhya

Masculine	Singular	Dual	Plural
Nominative	aupasandhyaḥ	aupasandhyau	aupasandhyāḥ
Vocative	aupasandhya	aupasandhyau	aupasandhyāḥ
Accusative	aupasandhyam	aupasandhyau	aupasandhyān
Instrumental	aupasandhyena	aupasandhyābhyām	aupasandhyaiḥ aupasandhyebhiḥ
Dative	aupasandhyāya	aupasandhyābhyām	aupasandhyebhyaḥ
Ablative	aupasandhyāt	aupasandhyābhyām	aupasandhyebhyaḥ
Genitive	aupasandhyasya	aupasandhyayoḥ	aupasandhyānām
Locative	aupasandhye	aupasandhyayoḥ	aupasandhyeṣu

Compound aupasandhya -

Adverb -aupasandhyam -aupasandhyāt