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