Declension table of ?śāntanava

Neuter	Singular	Dual	Plural
Nominative	śāntanavam	śāntanave	śāntanavāni
Vocative	śāntanava	śāntanave	śāntanavāni
Accusative	śāntanavam	śāntanave	śāntanavāni
Instrumental	śāntanavena	śāntanavābhyām	śāntanavaiḥ
Dative	śāntanavāya	śāntanavābhyām	śāntanavebhyaḥ
Ablative	śāntanavāt	śāntanavābhyām	śāntanavebhyaḥ
Genitive	śāntanavasya	śāntanavayoḥ	śāntanavānām
Locative	śāntanave	śāntanavayoḥ	śāntanaveṣu

Compound śāntanava -

Adverb -śāntanavam -śāntanavāt