Declension table of ?śastramukha

Neuter	Singular	Dual	Plural
Nominative	śastramukham	śastramukhe	śastramukhāṇi
Vocative	śastramukha	śastramukhe	śastramukhāṇi
Accusative	śastramukham	śastramukhe	śastramukhāṇi
Instrumental	śastramukheṇa	śastramukhābhyām	śastramukhaiḥ
Dative	śastramukhāya	śastramukhābhyām	śastramukhebhyaḥ
Ablative	śastramukhāt	śastramukhābhyām	śastramukhebhyaḥ
Genitive	śastramukhasya	śastramukhayoḥ	śastramukhāṇām
Locative	śastramukhe	śastramukhayoḥ	śastramukheṣu

Compound śastramukha -

Adverb -śastramukham -śastramukhāt