Declension table of ?vacatra

Neuter	Singular	Dual	Plural
Nominative	vacatram	vacatre	vacatrāṇi
Vocative	vacatra	vacatre	vacatrāṇi
Accusative	vacatram	vacatre	vacatrāṇi
Instrumental	vacatreṇa	vacatrābhyām	vacatraiḥ
Dative	vacatrāya	vacatrābhyām	vacatrebhyaḥ
Ablative	vacatrāt	vacatrābhyām	vacatrebhyaḥ
Genitive	vacatrasya	vacatrayoḥ	vacatrāṇām
Locative	vacatre	vacatrayoḥ	vacatreṣu

Compound vacatra -

Adverb -vacatram -vacatrāt