Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
‡ exesto, extra esto. Sic enim lictor in quibusdam sacris clamitabat: HOSTIS, VINCTVS, MVLIER, VIRGO EXESTO; scilicet interesse prohibebatur, Paul. ex Fest. p. 82, 8 Müll.