Declension table of ?hārdi

Masculine	Singular	Dual	Plural
Nominative	hārdiḥ	hārdī	hārdayaḥ
Vocative	hārde	hārdī	hārdayaḥ
Accusative	hārdim	hārdī	hārdīn
Instrumental	hārdinā	hārdibhyām	hārdibhiḥ
Dative	hārdaye	hārdibhyām	hārdibhyaḥ
Ablative	hārdeḥ	hārdibhyām	hārdibhyaḥ
Genitive	hārdeḥ	hārdyoḥ	hārdīnām
Locative	hārdau	hārdyoḥ	hārdiṣu

Compound hārdi -

Adverb -hārdi