Declension table of ?sthiratara

Neuter	Singular	Dual	Plural
Nominative	sthirataram	sthiratare	sthiratarāṇi
Vocative	sthiratara	sthiratare	sthiratarāṇi
Accusative	sthirataram	sthiratare	sthiratarāṇi
Instrumental	sthiratareṇa	sthiratarābhyām	sthirataraiḥ
Dative	sthiratarāya	sthiratarābhyām	sthiratarebhyaḥ
Ablative	sthiratarāt	sthiratarābhyām	sthiratarebhyaḥ
Genitive	sthiratarasya	sthiratarayoḥ	sthiratarāṇām
Locative	sthiratare	sthiratarayoḥ	sthiratareṣu

Compound sthiratara -

Adverb -sthirataram -sthiratarāt