Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
1. mōlītor, ōris, m. [molior], one who undertakes to do a thing, an attempter, author, framer, contriver (class.): effector mundi molitorque deus, Cic. Univ. 5: ratis, Ov. M. 8, 302: caedis, Tac. A. 11, 29: novarum rerum, Suet. Dom. 10: maximorum molitores scelerum, Sen. Tranq. 7, 3.
2. mŏlĭtor, ōris, m. [1. molo], a miller (post-class.).