Declension table of ?yonin

Neuter	Singular	Dual	Plural
Nominative	yoni	yoninī	yonīni
Vocative	yonin yoni	yoninī	yonīni
Accusative	yoni	yoninī	yonīni
Instrumental	yoninā	yonibhyām	yonibhiḥ
Dative	yonine	yonibhyām	yonibhyaḥ
Ablative	yoninaḥ	yonibhyām	yonibhyaḥ
Genitive	yoninaḥ	yoninoḥ	yoninām
Locative	yonini	yoninoḥ	yoniṣu

Compound yoni -

Adverb -yoni