@roger,
How could I have studied Spanish all those years and not encountered an umlaut? Lots of tildes, though.
I'm gonna contact a friend of mine (a Spanish scholar) and get to the bottom of this.
In the meantime, back to work.
PS: In case you were wondering how to spell a certain German word, here it is: schadenfreude. At least I think it's German.
Au revoir, mes amis.