Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
Pyracmon, ŏnis, m., = Πυράκμων, a Cyclops, a servant of Vulcan, Verg. A. 8, 425; Claud. Rapt. Pros. 1, 238; id. Cons. Hon. 3, 195.