Declension table of ?smaratva

Neuter	Singular	Dual	Plural
Nominative	smaratvam	smaratve	smaratvāni
Vocative	smaratva	smaratve	smaratvāni
Accusative	smaratvam	smaratve	smaratvāni
Instrumental	smaratvena	smaratvābhyām	smaratvaiḥ
Dative	smaratvāya	smaratvābhyām	smaratvebhyaḥ
Ablative	smaratvāt	smaratvābhyām	smaratvebhyaḥ
Genitive	smaratvasya	smaratvayoḥ	smaratvānām
Locative	smaratve	smaratvayoḥ	smaratveṣu

Compound smaratva -

Adverb -smaratvam -smaratvāt