Declension table of ?paurasakhya

Neuter	Singular	Dual	Plural
Nominative	paurasakhyam	paurasakhye	paurasakhyāni
Vocative	paurasakhya	paurasakhye	paurasakhyāni
Accusative	paurasakhyam	paurasakhye	paurasakhyāni
Instrumental	paurasakhyena	paurasakhyābhyām	paurasakhyaiḥ
Dative	paurasakhyāya	paurasakhyābhyām	paurasakhyebhyaḥ
Ablative	paurasakhyāt	paurasakhyābhyām	paurasakhyebhyaḥ
Genitive	paurasakhyasya	paurasakhyayoḥ	paurasakhyānām
Locative	paurasakhye	paurasakhyayoḥ	paurasakhyeṣu

Compound paurasakhya -

Adverb -paurasakhyam -paurasakhyāt