Declension table of ?bhāyya

Neuter	Singular	Dual	Plural
Nominative	bhāyyam	bhāyye	bhāyyāni
Vocative	bhāyya	bhāyye	bhāyyāni
Accusative	bhāyyam	bhāyye	bhāyyāni
Instrumental	bhāyyena	bhāyyābhyām	bhāyyaiḥ
Dative	bhāyyāya	bhāyyābhyām	bhāyyebhyaḥ
Ablative	bhāyyāt	bhāyyābhyām	bhāyyebhyaḥ
Genitive	bhāyyasya	bhāyyayoḥ	bhāyyānām
Locative	bhāyye	bhāyyayoḥ	bhāyyeṣu

Compound bhāyya -

Adverb -bhāyyam -bhāyyāt