Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
spŏlĭātor, ōris, m. [spolio], a robber, pillager, plunderer, spoiler (rare but class.): eorum (monumentorum), * Cic. Verr. 2, 4, 36, § 80: templi, Liv. 29, 18, 15: pupilli, Juv. 1, 46.