Declension table of ?dṛbhat

Masculine	Singular	Dual	Plural
Nominative	dṛbhan	dṛbhantau	dṛbhantaḥ
Vocative	dṛbhan	dṛbhantau	dṛbhantaḥ
Accusative	dṛbhantam	dṛbhantau	dṛbhataḥ
Instrumental	dṛbhatā	dṛbhadbhyām	dṛbhadbhiḥ
Dative	dṛbhate	dṛbhadbhyām	dṛbhadbhyaḥ
Ablative	dṛbhataḥ	dṛbhadbhyām	dṛbhadbhyaḥ
Genitive	dṛbhataḥ	dṛbhatoḥ	dṛbhatām
Locative	dṛbhati	dṛbhatoḥ	dṛbhatsu

Compound dṛbhat -

Adverb -dṛbhantam