Declension table of ?viyūṣka

Masculine	Singular	Dual	Plural
Nominative	viyūṣkaḥ	viyūṣkau	viyūṣkāḥ
Vocative	viyūṣka	viyūṣkau	viyūṣkāḥ
Accusative	viyūṣkam	viyūṣkau	viyūṣkān
Instrumental	viyūṣkeṇa	viyūṣkābhyām	viyūṣkaiḥ viyūṣkebhiḥ
Dative	viyūṣkāya	viyūṣkābhyām	viyūṣkebhyaḥ
Ablative	viyūṣkāt	viyūṣkābhyām	viyūṣkebhyaḥ
Genitive	viyūṣkasya	viyūṣkayoḥ	viyūṣkāṇām
Locative	viyūṣke	viyūṣkayoḥ	viyūṣkeṣu

Compound viyūṣka -

Adverb -viyūṣkam -viyūṣkāt