Declension table of ?vṛkṣatva

Neuter	Singular	Dual	Plural
Nominative	vṛkṣatvam	vṛkṣatve	vṛkṣatvāni
Vocative	vṛkṣatva	vṛkṣatve	vṛkṣatvāni
Accusative	vṛkṣatvam	vṛkṣatve	vṛkṣatvāni
Instrumental	vṛkṣatvena	vṛkṣatvābhyām	vṛkṣatvaiḥ
Dative	vṛkṣatvāya	vṛkṣatvābhyām	vṛkṣatvebhyaḥ
Ablative	vṛkṣatvāt	vṛkṣatvābhyām	vṛkṣatvebhyaḥ
Genitive	vṛkṣatvasya	vṛkṣatvayoḥ	vṛkṣatvānām
Locative	vṛkṣatve	vṛkṣatvayoḥ	vṛkṣatveṣu

Compound vṛkṣatva -

Adverb -vṛkṣatvam -vṛkṣatvāt