Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
interceptor, ōris, m. [intercipio], an intercepter, usurper, embezzler: praedae, Liv. 4, 50, 1: litis alienae, id. 3, 72, 4: donativi, Tac. H. 3, 10: divini beneficii, one who renders void, Val. Max. 9, 11, 4.