Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
asso, āvi, 1, v. a. [assus], to roast, broil (late Lat.): assari, App. M. 2, p. 119, 12: assaverunt Phase super ignem, Vulg. 2 Par. 35, 13: assavit carnes ejus, ib. Tob. 6, 6: jecur, Apic. 2, 1.