Declension table of ?hayagandha

Neuter	Singular	Dual	Plural
Nominative	hayagandham	hayagandhe	hayagandhāni
Vocative	hayagandha	hayagandhe	hayagandhāni
Accusative	hayagandham	hayagandhe	hayagandhāni
Instrumental	hayagandhena	hayagandhābhyām	hayagandhaiḥ
Dative	hayagandhāya	hayagandhābhyām	hayagandhebhyaḥ
Ablative	hayagandhāt	hayagandhābhyām	hayagandhebhyaḥ
Genitive	hayagandhasya	hayagandhayoḥ	hayagandhānām
Locative	hayagandhe	hayagandhayoḥ	hayagandheṣu

Compound hayagandha -

Adverb -hayagandham -hayagandhāt