Declension table of ?saumyamukha

Neuter	Singular	Dual	Plural
Nominative	saumyamukham	saumyamukhe	saumyamukhāni
Vocative	saumyamukha	saumyamukhe	saumyamukhāni
Accusative	saumyamukham	saumyamukhe	saumyamukhāni
Instrumental	saumyamukhena	saumyamukhābhyām	saumyamukhaiḥ
Dative	saumyamukhāya	saumyamukhābhyām	saumyamukhebhyaḥ
Ablative	saumyamukhāt	saumyamukhābhyām	saumyamukhebhyaḥ
Genitive	saumyamukhasya	saumyamukhayoḥ	saumyamukhānām
Locative	saumyamukhe	saumyamukhayoḥ	saumyamukheṣu

Compound saumyamukha -

Adverb -saumyamukham -saumyamukhāt