Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
* ap-prōmitto (adp-), ĕre, v. a., to promise in addition to, i. e. also in one’s own name: cumque id ita futurum T. Roscius Capito appromitteret, Cic. Rosc. Am. 9, 26.