Declension table of ?vayasyaka

Masculine	Singular	Dual	Plural
Nominative	vayasyakaḥ	vayasyakau	vayasyakāḥ
Vocative	vayasyaka	vayasyakau	vayasyakāḥ
Accusative	vayasyakam	vayasyakau	vayasyakān
Instrumental	vayasyakena	vayasyakābhyām	vayasyakaiḥ vayasyakebhiḥ
Dative	vayasyakāya	vayasyakābhyām	vayasyakebhyaḥ
Ablative	vayasyakāt	vayasyakābhyām	vayasyakebhyaḥ
Genitive	vayasyakasya	vayasyakayoḥ	vayasyakānām
Locative	vayasyake	vayasyakayoḥ	vayasyakeṣu

Compound vayasyaka -

Adverb -vayasyakam -vayasyakāt