Declension table of ?bṛhaspatiya

Masculine	Singular	Dual	Plural
Nominative	bṛhaspatiyaḥ	bṛhaspatiyau	bṛhaspatiyāḥ
Vocative	bṛhaspatiya	bṛhaspatiyau	bṛhaspatiyāḥ
Accusative	bṛhaspatiyam	bṛhaspatiyau	bṛhaspatiyān
Instrumental	bṛhaspatiyena	bṛhaspatiyābhyām	bṛhaspatiyaiḥ bṛhaspatiyebhiḥ
Dative	bṛhaspatiyāya	bṛhaspatiyābhyām	bṛhaspatiyebhyaḥ
Ablative	bṛhaspatiyāt	bṛhaspatiyābhyām	bṛhaspatiyebhyaḥ
Genitive	bṛhaspatiyasya	bṛhaspatiyayoḥ	bṛhaspatiyānām
Locative	bṛhaspatiye	bṛhaspatiyayoḥ	bṛhaspatiyeṣu

Compound bṛhaspatiya -

Adverb -bṛhaspatiyam -bṛhaspatiyāt