Declension table of ?tanvin

Masculine	Singular	Dual	Plural
Nominative	tanvī	tanvinau	tanvinaḥ
Vocative	tanvin	tanvinau	tanvinaḥ
Accusative	tanvinam	tanvinau	tanvinaḥ
Instrumental	tanvinā	tanvibhyām	tanvibhiḥ
Dative	tanvine	tanvibhyām	tanvibhyaḥ
Ablative	tanvinaḥ	tanvibhyām	tanvibhyaḥ
Genitive	tanvinaḥ	tanvinoḥ	tanvinām
Locative	tanvini	tanvinoḥ	tanviṣu

Compound tanvi -

Adverb -tanvi