Declension table of ?gupya

Masculine	Singular	Dual	Plural
Nominative	gupyaḥ	gupyau	gupyāḥ
Vocative	gupya	gupyau	gupyāḥ
Accusative	gupyam	gupyau	gupyān
Instrumental	gupyena	gupyābhyām	gupyaiḥ gupyebhiḥ
Dative	gupyāya	gupyābhyām	gupyebhyaḥ
Ablative	gupyāt	gupyābhyām	gupyebhyaḥ
Genitive	gupyasya	gupyayoḥ	gupyānām
Locative	gupye	gupyayoḥ	gupyeṣu

Compound gupya -

Adverb -gupyam -gupyāt