Declension table of ?harṣumat

Masculine	Singular	Dual	Plural
Nominative	harṣumān	harṣumantau	harṣumantaḥ
Vocative	harṣuman	harṣumantau	harṣumantaḥ
Accusative	harṣumantam	harṣumantau	harṣumataḥ
Instrumental	harṣumatā	harṣumadbhyām	harṣumadbhiḥ
Dative	harṣumate	harṣumadbhyām	harṣumadbhyaḥ
Ablative	harṣumataḥ	harṣumadbhyām	harṣumadbhyaḥ
Genitive	harṣumataḥ	harṣumatoḥ	harṣumatām
Locative	harṣumati	harṣumatoḥ	harṣumatsu

Compound harṣumat -

Adverb -harṣumantam