Declension table of ?maithunin

Neuter	Singular	Dual	Plural
Nominative	maithuni	maithuninī	maithunīni
Vocative	maithunin maithuni	maithuninī	maithunīni
Accusative	maithuni	maithuninī	maithunīni
Instrumental	maithuninā	maithunibhyām	maithunibhiḥ
Dative	maithunine	maithunibhyām	maithunibhyaḥ
Ablative	maithuninaḥ	maithunibhyām	maithunibhyaḥ
Genitive	maithuninaḥ	maithuninoḥ	maithuninām
Locative	maithunini	maithuninoḥ	maithuniṣu

Compound maithuni -

Adverb -maithuni