Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
† chălo, no perf., ātum, 1, v. a., = χαλάω, to slacken, let down: cymbala, Vitr. 10, 13, p. 308 Bip.: culcitas, Veg. Mil. 4, 23.