Declension table of ?viśvapātṛ

Masculine	Singular	Dual	Plural
Nominative	viśvapātā	viśvapātārau	viśvapātāraḥ
Vocative	viśvapātaḥ	viśvapātārau	viśvapātāraḥ
Accusative	viśvapātāram	viśvapātārau	viśvapātṝn
Instrumental	viśvapātrā	viśvapātṛbhyām	viśvapātṛbhiḥ
Dative	viśvapātre	viśvapātṛbhyām	viśvapātṛbhyaḥ
Ablative	viśvapātuḥ	viśvapātṛbhyām	viśvapātṛbhyaḥ
Genitive	viśvapātuḥ	viśvapātroḥ	viśvapātṝṇām
Locative	viśvapātari	viśvapātroḥ	viśvapātṛṣu

Compound viśvapātṛ -

Adverb -viśvapātṛ