Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
† ănăglyptus or -phus, a, um, adj., = ἀνάγλυπτος or -φος; in sculpture, wrought or carved in bas-relief, Inscr. Orell. 3838.
Hence, subst.: ănăglypta, ōrum, n., work in bas-relief, Plin. 33, 11, 49, § 139, where the old form was anaglypha.