Declension table of ?tvaṅgya

Neuter	Singular	Dual	Plural
Nominative	tvaṅgyam	tvaṅgye	tvaṅgyāni
Vocative	tvaṅgya	tvaṅgye	tvaṅgyāni
Accusative	tvaṅgyam	tvaṅgye	tvaṅgyāni
Instrumental	tvaṅgyena	tvaṅgyābhyām	tvaṅgyaiḥ
Dative	tvaṅgyāya	tvaṅgyābhyām	tvaṅgyebhyaḥ
Ablative	tvaṅgyāt	tvaṅgyābhyām	tvaṅgyebhyaḥ
Genitive	tvaṅgyasya	tvaṅgyayoḥ	tvaṅgyānām
Locative	tvaṅgye	tvaṅgyayoḥ	tvaṅgyeṣu

Compound tvaṅgya -

Adverb -tvaṅgyam -tvaṅgyāt