Declension table of ?sānin

Masculine	Singular	Dual	Plural
Nominative	sānī	sāninau	sāninaḥ
Vocative	sānin	sāninau	sāninaḥ
Accusative	sāninam	sāninau	sāninaḥ
Instrumental	sāninā	sānibhyām	sānibhiḥ
Dative	sānine	sānibhyām	sānibhyaḥ
Ablative	sāninaḥ	sānibhyām	sānibhyaḥ
Genitive	sāninaḥ	sāninoḥ	sāninām
Locative	sānini	sāninoḥ	sāniṣu

Compound sāni -

Adverb -sāni