Declension table of ?himāruṇa

Masculine	Singular	Dual	Plural
Nominative	himāruṇaḥ	himāruṇau	himāruṇāḥ
Vocative	himāruṇa	himāruṇau	himāruṇāḥ
Accusative	himāruṇam	himāruṇau	himāruṇān
Instrumental	himāruṇena	himāruṇābhyām	himāruṇaiḥ himāruṇebhiḥ
Dative	himāruṇāya	himāruṇābhyām	himāruṇebhyaḥ
Ablative	himāruṇāt	himāruṇābhyām	himāruṇebhyaḥ
Genitive	himāruṇasya	himāruṇayoḥ	himāruṇānām
Locative	himāruṇe	himāruṇayoḥ	himāruṇeṣu

Compound himāruṇa -

Adverb -himāruṇam -himāruṇāt