Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
cŏlŭmellāris, e, adj [columella], pillar-formed (rare): dentes, the grinders of horses, Varr. R. R. 2, 7, 2; Plin. 11, 37, 64, § 168; in vulg. Lat. colomelli, acc. to Isid. Orig. 11, 1, 48.