Declension table of ?peṇitavya

Masculine	Singular	Dual	Plural
Nominative	peṇitavyaḥ	peṇitavyau	peṇitavyāḥ
Vocative	peṇitavya	peṇitavyau	peṇitavyāḥ
Accusative	peṇitavyam	peṇitavyau	peṇitavyān
Instrumental	peṇitavyena	peṇitavyābhyām	peṇitavyaiḥ peṇitavyebhiḥ
Dative	peṇitavyāya	peṇitavyābhyām	peṇitavyebhyaḥ
Ablative	peṇitavyāt	peṇitavyābhyām	peṇitavyebhyaḥ
Genitive	peṇitavyasya	peṇitavyayoḥ	peṇitavyānām
Locative	peṇitavye	peṇitavyayoḥ	peṇitavyeṣu

Compound peṇitavya -

Adverb -peṇitavyam -peṇitavyāt