Declension table of ?sapru

Neuter	Singular	Dual	Plural
Nominative	sapru	sapruṇī	saprūṇi
Vocative	sapru	sapruṇī	saprūṇi
Accusative	sapru	sapruṇī	saprūṇi
Instrumental	sapruṇā	saprubhyām	saprubhiḥ
Dative	sapruṇe	saprubhyām	saprubhyaḥ
Ablative	sapruṇaḥ	saprubhyām	saprubhyaḥ
Genitive	sapruṇaḥ	sapruṇoḥ	saprūṇām
Locative	sapruṇi	sapruṇoḥ	sapruṣu

Compound sapru -

Adverb -sapru