Declension table of ?sīmantavat

Masculine	Singular	Dual	Plural
Nominative	sīmantavān	sīmantavantau	sīmantavantaḥ
Vocative	sīmantavan	sīmantavantau	sīmantavantaḥ
Accusative	sīmantavantam	sīmantavantau	sīmantavataḥ
Instrumental	sīmantavatā	sīmantavadbhyām	sīmantavadbhiḥ
Dative	sīmantavate	sīmantavadbhyām	sīmantavadbhyaḥ
Ablative	sīmantavataḥ	sīmantavadbhyām	sīmantavadbhyaḥ
Genitive	sīmantavataḥ	sīmantavatoḥ	sīmantavatām
Locative	sīmantavati	sīmantavatoḥ	sīmantavatsu

Compound sīmantavat -

Adverb -sīmantavantam