Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
chălāzĭon, v. chalazius.
† chălāzĭus, a, um, adj. [χάλαζα, hail], pertaining to hail: lapis, a precious stone, Plin. 36, 22, 43, § 157.