Declension table of ?yaṣṭiyantra

Neuter	Singular	Dual	Plural
Nominative	yaṣṭiyantram	yaṣṭiyantre	yaṣṭiyantrāṇi
Vocative	yaṣṭiyantra	yaṣṭiyantre	yaṣṭiyantrāṇi
Accusative	yaṣṭiyantram	yaṣṭiyantre	yaṣṭiyantrāṇi
Instrumental	yaṣṭiyantreṇa	yaṣṭiyantrābhyām	yaṣṭiyantraiḥ
Dative	yaṣṭiyantrāya	yaṣṭiyantrābhyām	yaṣṭiyantrebhyaḥ
Ablative	yaṣṭiyantrāt	yaṣṭiyantrābhyām	yaṣṭiyantrebhyaḥ
Genitive	yaṣṭiyantrasya	yaṣṭiyantrayoḥ	yaṣṭiyantrāṇām
Locative	yaṣṭiyantre	yaṣṭiyantrayoḥ	yaṣṭiyantreṣu

Compound yaṣṭiyantra -

Adverb -yaṣṭiyantram -yaṣṭiyantrāt