Declension table of ?yaṣṭṛtara

Neuter	Singular	Dual	Plural
Nominative	yaṣṭṛtaram	yaṣṭṛtare	yaṣṭṛtarāṇi
Vocative	yaṣṭṛtara	yaṣṭṛtare	yaṣṭṛtarāṇi
Accusative	yaṣṭṛtaram	yaṣṭṛtare	yaṣṭṛtarāṇi
Instrumental	yaṣṭṛtareṇa	yaṣṭṛtarābhyām	yaṣṭṛtaraiḥ
Dative	yaṣṭṛtarāya	yaṣṭṛtarābhyām	yaṣṭṛtarebhyaḥ
Ablative	yaṣṭṛtarāt	yaṣṭṛtarābhyām	yaṣṭṛtarebhyaḥ
Genitive	yaṣṭṛtarasya	yaṣṭṛtarayoḥ	yaṣṭṛtarāṇām
Locative	yaṣṭṛtare	yaṣṭṛtarayoḥ	yaṣṭṛtareṣu

Compound yaṣṭṛtara -

Adverb -yaṣṭṛtaram -yaṣṭṛtarāt