Declension table of ?samādhin

Neuter	Singular	Dual	Plural
Nominative	samādhi	samādhinī	samādhīni
Vocative	samādhin samādhi	samādhinī	samādhīni
Accusative	samādhi	samādhinī	samādhīni
Instrumental	samādhinā	samādhibhyām	samādhibhiḥ
Dative	samādhine	samādhibhyām	samādhibhyaḥ
Ablative	samādhinaḥ	samādhibhyām	samādhibhyaḥ
Genitive	samādhinaḥ	samādhinoḥ	samādhinām
Locative	samādhini	samādhinoḥ	samādhiṣu

Compound samādhi -

Adverb -samādhi