Declension table of ?yaśastama

Neuter	Singular	Dual	Plural
Nominative	yaśastamam	yaśastame	yaśastamāni
Vocative	yaśastama	yaśastame	yaśastamāni
Accusative	yaśastamam	yaśastame	yaśastamāni
Instrumental	yaśastamena	yaśastamābhyām	yaśastamaiḥ
Dative	yaśastamāya	yaśastamābhyām	yaśastamebhyaḥ
Ablative	yaśastamāt	yaśastamābhyām	yaśastamebhyaḥ
Genitive	yaśastamasya	yaśastamayoḥ	yaśastamānām
Locative	yaśastame	yaśastamayoḥ	yaśastameṣu

Compound yaśastama -

Adverb -yaśastamam -yaśastamāt