Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
plāgĭpătĭda, ae, m. [1. plaga-patior], a buffet-bearer (ante-class.), Plaut. Capt. 3, 1, 12: plagipatidae, ferritribaces viri, id. Most. 2, 1, 9.