Declension table of ?jahāna

Masculine	Singular	Dual	Plural
Nominative	jahānaḥ	jahānau	jahānāḥ
Vocative	jahāna	jahānau	jahānāḥ
Accusative	jahānam	jahānau	jahānān
Instrumental	jahānena	jahānābhyām	jahānaiḥ jahānebhiḥ
Dative	jahānāya	jahānābhyām	jahānebhyaḥ
Ablative	jahānāt	jahānābhyām	jahānebhyaḥ
Genitive	jahānasya	jahānayoḥ	jahānānām
Locative	jahāne	jahānayoḥ	jahāneṣu

Compound jahāna -

Adverb -jahānam -jahānāt