Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
† ĕrĭthăce, ēs, f., = ἐριθάκη, bee-bread, sandarach, called also sandaraca and cerinthus, Plin. 11, 7, 7, § 17 (in Varr. R. R. 316, 8 and 23, written as Greek).