Declension table of ?romakasiddhānta

Masculine	Singular	Dual	Plural
Nominative	romakasiddhāntaḥ	romakasiddhāntau	romakasiddhāntāḥ
Vocative	romakasiddhānta	romakasiddhāntau	romakasiddhāntāḥ
Accusative	romakasiddhāntam	romakasiddhāntau	romakasiddhāntān
Instrumental	romakasiddhāntena	romakasiddhāntābhyām	romakasiddhāntaiḥ romakasiddhāntebhiḥ
Dative	romakasiddhāntāya	romakasiddhāntābhyām	romakasiddhāntebhyaḥ
Ablative	romakasiddhāntāt	romakasiddhāntābhyām	romakasiddhāntebhyaḥ
Genitive	romakasiddhāntasya	romakasiddhāntayoḥ	romakasiddhāntānām
Locative	romakasiddhānte	romakasiddhāntayoḥ	romakasiddhānteṣu

Compound romakasiddhānta -

Adverb -romakasiddhāntam -romakasiddhāntāt