Declension table of ?janakāya

Masculine	Singular	Dual	Plural
Nominative	janakāyaḥ	janakāyau	janakāyāḥ
Vocative	janakāya	janakāyau	janakāyāḥ
Accusative	janakāyam	janakāyau	janakāyān
Instrumental	janakāyena	janakāyābhyām	janakāyaiḥ janakāyebhiḥ
Dative	janakāyāya	janakāyābhyām	janakāyebhyaḥ
Ablative	janakāyāt	janakāyābhyām	janakāyebhyaḥ
Genitive	janakāyasya	janakāyayoḥ	janakāyānām
Locative	janakāye	janakāyayoḥ	janakāyeṣu

Compound janakāya -

Adverb -janakāyam -janakāyāt