Declension table of ?pṛṣṭhāsthi

Neuter	Singular	Dual	Plural
Nominative	pṛṣṭhāsthi	pṛṣṭhāsthinī	pṛṣṭhāsthīni
Vocative	pṛṣṭhāsthi	pṛṣṭhāsthinī	pṛṣṭhāsthīni
Accusative	pṛṣṭhāsthi	pṛṣṭhāsthinī	pṛṣṭhāsthīni
Instrumental	pṛṣṭhāsthinā	pṛṣṭhāsthibhyām	pṛṣṭhāsthibhiḥ
Dative	pṛṣṭhāsthine	pṛṣṭhāsthibhyām	pṛṣṭhāsthibhyaḥ
Ablative	pṛṣṭhāsthinaḥ	pṛṣṭhāsthibhyām	pṛṣṭhāsthibhyaḥ
Genitive	pṛṣṭhāsthinaḥ	pṛṣṭhāsthinoḥ	pṛṣṭhāsthīnām
Locative	pṛṣṭhāsthini	pṛṣṭhāsthinoḥ	pṛṣṭhāsthiṣu

Compound pṛṣṭhāsthi -

Adverb -pṛṣṭhāsthi