Declension table of ?pūrṇamukha

Masculine	Singular	Dual	Plural
Nominative	pūrṇamukhaḥ	pūrṇamukhau	pūrṇamukhāḥ
Vocative	pūrṇamukha	pūrṇamukhau	pūrṇamukhāḥ
Accusative	pūrṇamukham	pūrṇamukhau	pūrṇamukhān
Instrumental	pūrṇamukhena	pūrṇamukhābhyām	pūrṇamukhaiḥ pūrṇamukhebhiḥ
Dative	pūrṇamukhāya	pūrṇamukhābhyām	pūrṇamukhebhyaḥ
Ablative	pūrṇamukhāt	pūrṇamukhābhyām	pūrṇamukhebhyaḥ
Genitive	pūrṇamukhasya	pūrṇamukhayoḥ	pūrṇamukhānām
Locative	pūrṇamukhe	pūrṇamukhayoḥ	pūrṇamukheṣu

Compound pūrṇamukha -

Adverb -pūrṇamukham -pūrṇamukhāt