Declension table of ?dṛḍhamanyu

Masculine	Singular	Dual	Plural
Nominative	dṛḍhamanyuḥ	dṛḍhamanyū	dṛḍhamanyavaḥ
Vocative	dṛḍhamanyo	dṛḍhamanyū	dṛḍhamanyavaḥ
Accusative	dṛḍhamanyum	dṛḍhamanyū	dṛḍhamanyūn
Instrumental	dṛḍhamanyunā	dṛḍhamanyubhyām	dṛḍhamanyubhiḥ
Dative	dṛḍhamanyave	dṛḍhamanyubhyām	dṛḍhamanyubhyaḥ
Ablative	dṛḍhamanyoḥ	dṛḍhamanyubhyām	dṛḍhamanyubhyaḥ
Genitive	dṛḍhamanyoḥ	dṛḍhamanyvoḥ	dṛḍhamanyūnām
Locative	dṛḍhamanyau	dṛḍhamanyvoḥ	dṛḍhamanyuṣu

Compound dṛḍhamanyu -

Adverb -dṛḍhamanyu