Declension table of ?śastramaya

Masculine	Singular	Dual	Plural
Nominative	śastramayaḥ	śastramayau	śastramayāḥ
Vocative	śastramaya	śastramayau	śastramayāḥ
Accusative	śastramayam	śastramayau	śastramayān
Instrumental	śastramayeṇa	śastramayābhyām	śastramayaiḥ śastramayebhiḥ
Dative	śastramayāya	śastramayābhyām	śastramayebhyaḥ
Ablative	śastramayāt	śastramayābhyām	śastramayebhyaḥ
Genitive	śastramayasya	śastramayayoḥ	śastramayāṇām
Locative	śastramaye	śastramayayoḥ	śastramayeṣu

Compound śastramaya -

Adverb -śastramayam -śastramayāt