Declension table of ?suśasta

Neuter	Singular	Dual	Plural
Nominative	suśastam	suśaste	suśastāni
Vocative	suśasta	suśaste	suśastāni
Accusative	suśastam	suśaste	suśastāni
Instrumental	suśastena	suśastābhyām	suśastaiḥ
Dative	suśastāya	suśastābhyām	suśastebhyaḥ
Ablative	suśastāt	suśastābhyām	suśastebhyaḥ
Genitive	suśastasya	suśastayoḥ	suśastānām
Locative	suśaste	suśastayoḥ	suśasteṣu

Compound suśasta -

Adverb -suśastam -suśastāt