I've noticed other threads where this was discussed, most people look for words in other languages especially french where there is only a very very loose connection based on misspelling. Others have looked for historical figures with similar names. What i am wondering is perhaps she created an anagram or something of that description. She was smart enough to do so. Do you know what I mean? Rearrange the letters to something else like Lea De Mae to Deal Me A...., of course english was not her strong suit so most likely it would require someone who speaks the language of the czech republic to figure it out.
the reason i think this is what she did is because lea in english is always spelled with an H and the end like leah, why lea? unless it did not fit into the puzzle.
words i've found: deal, meal, deem, lead, male, lame, made, dame (good possibility there i.e. Dame Elea, dame lea e. I don't know, was there a dame she was a fan of like dame edna?