Declension table of śāntideva

Masculine	Singular	Dual	Plural
Nominative	śāntidevaḥ	śāntidevau	śāntidevāḥ
Vocative	śāntideva	śāntidevau	śāntidevāḥ
Accusative	śāntidevam	śāntidevau	śāntidevān
Instrumental	śāntidevena	śāntidevābhyām	śāntidevaiḥ śāntidevebhiḥ
Dative	śāntidevāya	śāntidevābhyām	śāntidevebhyaḥ
Ablative	śāntidevāt	śāntidevābhyām	śāntidevebhyaḥ
Genitive	śāntidevasya	śāntidevayoḥ	śāntidevānām
Locative	śāntideve	śāntidevayoḥ	śāntideveṣu

Compound śāntideva -

Adverb -śāntidevam -śāntidevāt