Declension table of ?yakṣat

Masculine	Singular	Dual	Plural
Nominative	yakṣan	yakṣantau	yakṣantaḥ
Vocative	yakṣan	yakṣantau	yakṣantaḥ
Accusative	yakṣantam	yakṣantau	yakṣataḥ
Instrumental	yakṣatā	yakṣadbhyām	yakṣadbhiḥ
Dative	yakṣate	yakṣadbhyām	yakṣadbhyaḥ
Ablative	yakṣataḥ	yakṣadbhyām	yakṣadbhyaḥ
Genitive	yakṣataḥ	yakṣatoḥ	yakṣatām
Locative	yakṣati	yakṣatoḥ	yakṣatsu

Compound yakṣat -

Adverb -yakṣantam