Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
cătăplasmo, āre, v. a. [cataplasma], to apply a poultice to: praecordia, Cael. Aur. Acut. 2, 19, 120; cf. id. Tard. 5, 1: equum, Veg. 5, 2, 2; Macer. Flor. 18, v. 723.