Declension table of ?pīthya

Neuter	Singular	Dual	Plural
Nominative	pīthyam	pīthye	pīthyāni
Vocative	pīthya	pīthye	pīthyāni
Accusative	pīthyam	pīthye	pīthyāni
Instrumental	pīthyena	pīthyābhyām	pīthyaiḥ
Dative	pīthyāya	pīthyābhyām	pīthyebhyaḥ
Ablative	pīthyāt	pīthyābhyām	pīthyebhyaḥ
Genitive	pīthyasya	pīthyayoḥ	pīthyānām
Locative	pīthye	pīthyayoḥ	pīthyeṣu

Compound pīthya -

Adverb -pīthyam -pīthyāt