Declension table of ?dhairyavat

Masculine	Singular	Dual	Plural
Nominative	dhairyavān	dhairyavantau	dhairyavantaḥ
Vocative	dhairyavan	dhairyavantau	dhairyavantaḥ
Accusative	dhairyavantam	dhairyavantau	dhairyavataḥ
Instrumental	dhairyavatā	dhairyavadbhyām	dhairyavadbhiḥ
Dative	dhairyavate	dhairyavadbhyām	dhairyavadbhyaḥ
Ablative	dhairyavataḥ	dhairyavadbhyām	dhairyavadbhyaḥ
Genitive	dhairyavataḥ	dhairyavatoḥ	dhairyavatām
Locative	dhairyavati	dhairyavatoḥ	dhairyavatsu

Compound dhairyavat -

Adverb -dhairyavantam