Declension table of ?yatsena

Neuter	Singular	Dual	Plural
Nominative	yatsenam	yatsene	yatsenāni
Vocative	yatsena	yatsene	yatsenāni
Accusative	yatsenam	yatsene	yatsenāni
Instrumental	yatsenena	yatsenābhyām	yatsenaiḥ
Dative	yatsenāya	yatsenābhyām	yatsenebhyaḥ
Ablative	yatsenāt	yatsenābhyām	yatsenebhyaḥ
Genitive	yatsenasya	yatsenayoḥ	yatsenānām
Locative	yatsene	yatsenayoḥ	yatseneṣu

Compound yatsena -

Adverb -yatsenam -yatsenāt