Declension table of ?samithuna

Masculine	Singular	Dual	Plural
Nominative	samithunaḥ	samithunau	samithunāḥ
Vocative	samithuna	samithunau	samithunāḥ
Accusative	samithunam	samithunau	samithunān
Instrumental	samithunena	samithunābhyām	samithunaiḥ samithunebhiḥ
Dative	samithunāya	samithunābhyām	samithunebhyaḥ
Ablative	samithunāt	samithunābhyām	samithunebhyaḥ
Genitive	samithunasya	samithunayoḥ	samithunānām
Locative	samithune	samithunayoḥ	samithuneṣu

Compound samithuna -

Adverb -samithunam -samithunāt