Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
‡ secessĭōnes, narrationes, Fest. p. 336 Müll. N. cr. [perh. from secere; whence insecere, inseque, and insectiones, = narrationes, acc. to Gell. 18, 9, 8].