Declension table of ?japyaka

Masculine	Singular	Dual	Plural
Nominative	japyakaḥ	japyakau	japyakāḥ
Vocative	japyaka	japyakau	japyakāḥ
Accusative	japyakam	japyakau	japyakān
Instrumental	japyakena	japyakābhyām	japyakaiḥ japyakebhiḥ
Dative	japyakāya	japyakābhyām	japyakebhyaḥ
Ablative	japyakāt	japyakābhyām	japyakebhyaḥ
Genitive	japyakasya	japyakayoḥ	japyakānām
Locative	japyake	japyakayoḥ	japyakeṣu

Compound japyaka -

Adverb -japyakam -japyakāt