but my guess is (and it's not a stupid one this time):
"tauh sap tse'n lI" out from French is "hgih ton si eH"
"hgih ton si eH" is the opposite of saying "He is not high" which is also the opposite of sssaying "She is low"
"She is low" into French is "Elle est basse"
so now it's "He is not high" backwards in french like before (only decoded). But it's one word. So "Elle est basse" as one word. What could that be? I think I'm on the wrong track.
Something tells me it's Beatrix. Is it Beatrix?
