Declension table of ?ātithyavat

Masculine	Singular	Dual	Plural
Nominative	ātithyavān	ātithyavantau	ātithyavantaḥ
Vocative	ātithyavan	ātithyavantau	ātithyavantaḥ
Accusative	ātithyavantam	ātithyavantau	ātithyavataḥ
Instrumental	ātithyavatā	ātithyavadbhyām	ātithyavadbhiḥ
Dative	ātithyavate	ātithyavadbhyām	ātithyavadbhyaḥ
Ablative	ātithyavataḥ	ātithyavadbhyām	ātithyavadbhyaḥ
Genitive	ātithyavataḥ	ātithyavatoḥ	ātithyavatām
Locative	ātithyavati	ātithyavatoḥ	ātithyavatsu

Compound ātithyavat -

Adverb -ātithyavantam