Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
1. sīmo, āvi, ātum, 1, v. a. [simus], to press flat, to flatten (only in the foll. passages): simavit taxim ad nares, Lucil. ap. Non. 169, 31: simataeque jacent pando sinuamine nares, Sulp. Luperc. ap. Anthol. Lat. 1, p. 516 Burm.: projecturas simaverunt, Vitr. 4, 2, 3.