Declension table of ?mithunin

Masculine	Singular	Dual	Plural
Nominative	mithunī	mithuninau	mithuninaḥ
Vocative	mithunin	mithuninau	mithuninaḥ
Accusative	mithuninam	mithuninau	mithuninaḥ
Instrumental	mithuninā	mithunibhyām	mithunibhiḥ
Dative	mithunine	mithunibhyām	mithunibhyaḥ
Ablative	mithuninaḥ	mithunibhyām	mithunibhyaḥ
Genitive	mithuninaḥ	mithuninoḥ	mithuninām
Locative	mithunini	mithuninoḥ	mithuniṣu

Compound mithuni -

Adverb -mithuni