Declension table of ?dvayasī

Feminine	Singular	Dual	Plural
Nominative	dvayasī	dvayasyau	dvayasyaḥ
Vocative	dvayasi	dvayasyau	dvayasyaḥ
Accusative	dvayasīm	dvayasyau	dvayasīḥ
Instrumental	dvayasyā	dvayasībhyām	dvayasībhiḥ
Dative	dvayasyai	dvayasībhyām	dvayasībhyaḥ
Ablative	dvayasyāḥ	dvayasībhyām	dvayasībhyaḥ
Genitive	dvayasyāḥ	dvayasyoḥ	dvayasīnām
Locative	dvayasyām	dvayasyoḥ	dvayasīṣu

Compound dvayasi - dvayasī -

Adverb -dvayasi