Declension table of ?peṭhivas

Masculine	Singular	Dual	Plural
Nominative	peṭhivān	peṭhivāṃsau	peṭhivāṃsaḥ
Vocative	peṭhivan	peṭhivāṃsau	peṭhivāṃsaḥ
Accusative	peṭhivāṃsam	peṭhivāṃsau	peṭhuṣaḥ
Instrumental	peṭhuṣā	peṭhivadbhyām	peṭhivadbhiḥ
Dative	peṭhuṣe	peṭhivadbhyām	peṭhivadbhyaḥ
Ablative	peṭhuṣaḥ	peṭhivadbhyām	peṭhivadbhyaḥ
Genitive	peṭhuṣaḥ	peṭhuṣoḥ	peṭhuṣām
Locative	peṭhuṣi	peṭhuṣoḥ	peṭhivatsu

Compound peṭhivat -

Adverb -peṭhivas