Declension table of ?avithya

Neuter	Singular	Dual	Plural
Nominative	avithyam	avithye	avithyāni
Vocative	avithya	avithye	avithyāni
Accusative	avithyam	avithye	avithyāni
Instrumental	avithyena	avithyābhyām	avithyaiḥ
Dative	avithyāya	avithyābhyām	avithyebhyaḥ
Ablative	avithyāt	avithyābhyām	avithyebhyaḥ
Genitive	avithyasya	avithyayoḥ	avithyānām
Locative	avithye	avithyayoḥ	avithyeṣu

Compound avithya -

Adverb -avithyam -avithyāt