Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
incantāmentum, i, n. [incanto], a charm, incantation (post-Aug.): valeantne aliquid verba et incantamenta carminum, Plin. 28, 2, 3, § 10: anile, Amm. 16, 8, 2: anilia incantamenta, id. 29, 2, 3.