We are proud to have an extensive list of levidromes. We are proud to be able to provide lists in multiple languages. However, we are humble to say we have all known levidromes.
Case in point.
Just look at the Tweet William Shatner posted on September 24th, 2018. Serutan, a levidrome with the word "natures". It was a laxative used between 1930 to 1960. We are assuming since it was an older product it never ended up in our word lists. Who knows how many more levidromes are out there.
Way to go William Shatner!