Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
in-fūmo, āvi, ātum, 1, v. a., to smoke, dry in the smoke: asini cerebrum infumatum, smoked, smoke-dried, Plin. 28, 16, 63, § 225; 28, 11, 48, § 176.