Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
† drăcontĭa, ae, f., drăcontĭas, ae, m., = δρακοντίας, or drăcōnītis, ĭdis, f., a precious stone, Plin. 37, 10, 57, § 108; Sol. 43.