Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
ŏboedītĭo (obed-), ōnis, f. [oboedio], obedience (post-class.): per unius oboeditionem justi constituentur multi, Vulg. Rom. 5, 19: ad justitiam, id. ib. 6, 16; Ambros. de Fug. Saec. 2, 12 fin.