Declension table of ?samādhitva

Neuter	Singular	Dual	Plural
Nominative	samādhitvam	samādhitve	samādhitvāni
Vocative	samādhitva	samādhitve	samādhitvāni
Accusative	samādhitvam	samādhitve	samādhitvāni
Instrumental	samādhitvena	samādhitvābhyām	samādhitvaiḥ
Dative	samādhitvāya	samādhitvābhyām	samādhitvebhyaḥ
Ablative	samādhitvāt	samādhitvābhyām	samādhitvebhyaḥ
Genitive	samādhitvasya	samādhitvayoḥ	samādhitvānām
Locative	samādhitve	samādhitvayoḥ	samādhitveṣu

Compound samādhitva -

Adverb -samādhitvam -samādhitvāt