Declension table of ?pūrṇiman

Masculine	Singular	Dual	Plural
Nominative	pūrṇimā	pūrṇimānau	pūrṇimānaḥ
Vocative	pūrṇiman	pūrṇimānau	pūrṇimānaḥ
Accusative	pūrṇimānam	pūrṇimānau	pūrṇimnaḥ
Instrumental	pūrṇimnā	pūrṇimabhyām	pūrṇimabhiḥ
Dative	pūrṇimne	pūrṇimabhyām	pūrṇimabhyaḥ
Ablative	pūrṇimnaḥ	pūrṇimabhyām	pūrṇimabhyaḥ
Genitive	pūrṇimnaḥ	pūrṇimnoḥ	pūrṇimnām
Locative	pūrṇimni pūrṇimani	pūrṇimnoḥ	pūrṇimasu

Compound pūrṇima -

Adverb -pūrṇimam