Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
dēlectāmentum, i, n. [delecto], a delight (very rare): pro delectamento, amusement, pastime, Ter. Heaut. 5, 1, 79: delectamenta puerorum, etc., Cic. Pis. 25, 60: pacis, Nazar. Paneg. Const. 35: somni, Vulg. Sap. 7, 2.