Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
offendĭcŭlum, i, n. [1. offendo], a stumbling-block, obstacle, hinderance, cause of offence (post-Aug.): sunt enim in hac offendicula nonnulla. Plin. Ep. 9, 11, 1; Vulg. 1 Cor. 8, 9; id. Isa. 57, 14; Paul. Nol. Carm. 27, 96.