Declension table of ?śāntyamāna

Neuter	Singular	Dual	Plural
Nominative	śāntyamānam	śāntyamāne	śāntyamānāni
Vocative	śāntyamāna	śāntyamāne	śāntyamānāni
Accusative	śāntyamānam	śāntyamāne	śāntyamānāni
Instrumental	śāntyamānena	śāntyamānābhyām	śāntyamānaiḥ
Dative	śāntyamānāya	śāntyamānābhyām	śāntyamānebhyaḥ
Ablative	śāntyamānāt	śāntyamānābhyām	śāntyamānebhyaḥ
Genitive	śāntyamānasya	śāntyamānayoḥ	śāntyamānānām
Locative	śāntyamāne	śāntyamānayoḥ	śāntyamāneṣu

Compound śāntyamāna -

Adverb -śāntyamānam -śāntyamānāt