Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
‡ dēpĕcūlātus, ūs, m. (depeculor], a plundering: depeculatus a pecore dicitur. Qui enim populum fraudat, peculatus poena tenetur, Paul. ex Fest. p. 75, 11 Müll.: depeculatu (dat.) me meis esse habitum, Plaut. Ep. 3, 4, 83 Jacob. (dub. al. depeculatum).