Declension table of ?sthirātman

Neuter	Singular	Dual	Plural
Nominative	sthirātma	sthirātmanī	sthirātmāni
Vocative	sthirātman sthirātma	sthirātmanī	sthirātmāni
Accusative	sthirātma	sthirātmanī	sthirātmāni
Instrumental	sthirātmanā	sthirātmabhyām	sthirātmabhiḥ
Dative	sthirātmane	sthirātmabhyām	sthirātmabhyaḥ
Ablative	sthirātmanaḥ	sthirātmabhyām	sthirātmabhyaḥ
Genitive	sthirātmanaḥ	sthirātmanoḥ	sthirātmanām
Locative	sthirātmani	sthirātmanoḥ	sthirātmasu

Compound sthirātma -

Adverb -sthirātma -sthirātmam