Declension table of ?pathasundara

Masculine	Singular	Dual	Plural
Nominative	pathasundaraḥ	pathasundarau	pathasundarāḥ
Vocative	pathasundara	pathasundarau	pathasundarāḥ
Accusative	pathasundaram	pathasundarau	pathasundarān
Instrumental	pathasundareṇa	pathasundarābhyām	pathasundaraiḥ pathasundarebhiḥ
Dative	pathasundarāya	pathasundarābhyām	pathasundarebhyaḥ
Ablative	pathasundarāt	pathasundarābhyām	pathasundarebhyaḥ
Genitive	pathasundarasya	pathasundarayoḥ	pathasundarāṇām
Locative	pathasundare	pathasundarayoḥ	pathasundareṣu

Compound pathasundara -

Adverb -pathasundaram -pathasundarāt