Declension table of ?sammayana

Neuter	Singular	Dual	Plural
Nominative	sammayanam	sammayane	sammayanāni
Vocative	sammayana	sammayane	sammayanāni
Accusative	sammayanam	sammayane	sammayanāni
Instrumental	sammayanena	sammayanābhyām	sammayanaiḥ
Dative	sammayanāya	sammayanābhyām	sammayanebhyaḥ
Ablative	sammayanāt	sammayanābhyām	sammayanebhyaḥ
Genitive	sammayanasya	sammayanayoḥ	sammayanānām
Locative	sammayane	sammayanayoḥ	sammayaneṣu

Compound sammayana -

Adverb -sammayanam -sammayanāt