Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
stătūmĭno, āre, v. a. [statumen], to prop up, to underprop, support (post-Aug.): oras fossarum, Plin. 18, 6, 8, § 47: aliquid saxo, Vitr. 7, 1.