Declension table of ?caupāyana

Masculine	Singular	Dual	Plural
Nominative	caupāyanaḥ	caupāyanau	caupāyanāḥ
Vocative	caupāyana	caupāyanau	caupāyanāḥ
Accusative	caupāyanam	caupāyanau	caupāyanān
Instrumental	caupāyanena	caupāyanābhyām	caupāyanaiḥ caupāyanebhiḥ
Dative	caupāyanāya	caupāyanābhyām	caupāyanebhyaḥ
Ablative	caupāyanāt	caupāyanābhyām	caupāyanebhyaḥ
Genitive	caupāyanasya	caupāyanayoḥ	caupāyanānām
Locative	caupāyane	caupāyanayoḥ	caupāyaneṣu

Compound caupāyana -

Adverb -caupāyanam -caupāyanāt