Declension table of dṛḍhasyu

Masculine	Singular	Dual	Plural
Nominative	dṛḍhasyuḥ	dṛḍhasyū	dṛḍhasyavaḥ
Vocative	dṛḍhasyo	dṛḍhasyū	dṛḍhasyavaḥ
Accusative	dṛḍhasyum	dṛḍhasyū	dṛḍhasyūn
Instrumental	dṛḍhasyunā	dṛḍhasyubhyām	dṛḍhasyubhiḥ
Dative	dṛḍhasyave	dṛḍhasyubhyām	dṛḍhasyubhyaḥ
Ablative	dṛḍhasyoḥ	dṛḍhasyubhyām	dṛḍhasyubhyaḥ
Genitive	dṛḍhasyoḥ	dṛḍhasyvoḥ	dṛḍhasyūnām
Locative	dṛḍhasyau	dṛḍhasyvoḥ	dṛḍhasyuṣu

Compound dṛḍhasyu -

Adverb -dṛḍhasyu