Here's what rhymes with smaragdum.
Words that almost rhyme with smaragdum
prolactin random madam ransom tandem madame magnum nonrandom handsome platinum chasm datum fathom plasm hansom macadam sachem transom gladsome sphagnum talcum pablum memorandum maxim stratum amalgam phantom spasm sanctum tantrum tantum bantam neoplasm phantasm tarmacadam cytoplasm substratum enthusiasm protoplasm iconoclasm