Declension table of ?havāna

Masculine	Singular	Dual	Plural
Nominative	havānaḥ	havānau	havānāḥ
Vocative	havāna	havānau	havānāḥ
Accusative	havānam	havānau	havānān
Instrumental	havānena	havānābhyām	havānaiḥ havānebhiḥ
Dative	havānāya	havānābhyām	havānebhyaḥ
Ablative	havānāt	havānābhyām	havānebhyaḥ
Genitive	havānasya	havānayoḥ	havānānām
Locative	havāne	havānayoḥ	havāneṣu

Compound havāna -

Adverb -havānam -havānāt