Declension table of ?bhīṣaka

Masculine	Singular	Dual	Plural
Nominative	bhīṣakaḥ	bhīṣakau	bhīṣakāḥ
Vocative	bhīṣaka	bhīṣakau	bhīṣakāḥ
Accusative	bhīṣakam	bhīṣakau	bhīṣakān
Instrumental	bhīṣakeṇa	bhīṣakābhyām	bhīṣakaiḥ bhīṣakebhiḥ
Dative	bhīṣakāya	bhīṣakābhyām	bhīṣakebhyaḥ
Ablative	bhīṣakāt	bhīṣakābhyām	bhīṣakebhyaḥ
Genitive	bhīṣakasya	bhīṣakayoḥ	bhīṣakāṇām
Locative	bhīṣake	bhīṣakayoḥ	bhīṣakeṣu

Compound bhīṣaka -

Adverb -bhīṣakam -bhīṣakāt