Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
† dĭĭambus, i, m., = διΐαμβος, a double iambus: ⏑–⏑–, Don. p. 1739 P.; Diom. p. 477 ib. et saep. (in Ter. Maur. p. 2415 P., written as Greek).