Here's what rhymes with columnatum.
datum stratum substratum Words that almost rhyme with columnatum
madam madame satin fatten latin batten madden happen imagine hadn cabin haben flatten macadam platen sadden gladden tarmacadam maxim chasm fathom phantom magnum tantum sachem bantam handsome random platinum amalgam ransom spasm tandem plasm sanctum tantrum hansom phantasm talcum pablum memorandum nonrandom transom gladsome sphagnum neoplasm iconoclasm enthusiasm cytoplasm protoplasm