Declension table of ?uttarāvat

Masculine	Singular	Dual	Plural
Nominative	uttarāvān	uttarāvantau	uttarāvantaḥ
Vocative	uttarāvan	uttarāvantau	uttarāvantaḥ
Accusative	uttarāvantam	uttarāvantau	uttarāvataḥ
Instrumental	uttarāvatā	uttarāvadbhyām	uttarāvadbhiḥ
Dative	uttarāvate	uttarāvadbhyām	uttarāvadbhyaḥ
Ablative	uttarāvataḥ	uttarāvadbhyām	uttarāvadbhyaḥ
Genitive	uttarāvataḥ	uttarāvatoḥ	uttarāvatām
Locative	uttarāvati	uttarāvatoḥ	uttarāvatsu

Compound uttarāvat -

Adverb -uttarāvantam