Declension table of ?gupthavat

Masculine	Singular	Dual	Plural
Nominative	gupthavān	gupthavantau	gupthavantaḥ
Vocative	gupthavan	gupthavantau	gupthavantaḥ
Accusative	gupthavantam	gupthavantau	gupthavataḥ
Instrumental	gupthavatā	gupthavadbhyām	gupthavadbhiḥ
Dative	gupthavate	gupthavadbhyām	gupthavadbhyaḥ
Ablative	gupthavataḥ	gupthavadbhyām	gupthavadbhyaḥ
Genitive	gupthavataḥ	gupthavatoḥ	gupthavatām
Locative	gupthavati	gupthavatoḥ	gupthavatsu

Compound gupthavat -

Adverb -gupthavantam