Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
† chălastĭcus, a, um, adj., = χαλαστικός, of or pertaining to alleviating, soothing: aqua, Theod. Prisc. 1, 7 and 15: unctiones, Veg. 1, 28, 6.