Declension table of ?gupyamāna

Neuter	Singular	Dual	Plural
Nominative	gupyamānam	gupyamāne	gupyamānāni
Vocative	gupyamāna	gupyamāne	gupyamānāni
Accusative	gupyamānam	gupyamāne	gupyamānāni
Instrumental	gupyamānena	gupyamānābhyām	gupyamānaiḥ
Dative	gupyamānāya	gupyamānābhyām	gupyamānebhyaḥ
Ablative	gupyamānāt	gupyamānābhyām	gupyamānebhyaḥ
Genitive	gupyamānasya	gupyamānayoḥ	gupyamānānām
Locative	gupyamāne	gupyamānayoḥ	gupyamāneṣu

Compound gupyamāna -

Adverb -gupyamānam -gupyamānāt