Declension table of ?pakṣṇu

Masculine	Singular	Dual	Plural
Nominative	pakṣṇuḥ	pakṣṇū	pakṣṇavaḥ
Vocative	pakṣṇo	pakṣṇū	pakṣṇavaḥ
Accusative	pakṣṇum	pakṣṇū	pakṣṇūn
Instrumental	pakṣṇunā	pakṣṇubhyām	pakṣṇubhiḥ
Dative	pakṣṇave	pakṣṇubhyām	pakṣṇubhyaḥ
Ablative	pakṣṇoḥ	pakṣṇubhyām	pakṣṇubhyaḥ
Genitive	pakṣṇoḥ	pakṣṇvoḥ	pakṣṇūnām
Locative	pakṣṇau	pakṣṇvoḥ	pakṣṇuṣu

Compound pakṣṇu -

Adverb -pakṣṇu