Hey people Gropius isn't even english it's german so it doesn't come from Grope...Also natural makes sense seeing as N was natural to himself.Also something about the name's order is off...shouldn't Harmonia come last or first (if they are doing japanese name order) seeing how he shares the name with Ghetsis who is his father...unless Ghetsis full last name is actually two- Harmonia Gropius...
GUYS GUYS GUYS GUYS. I just found the link between N's name!
Gropius designed the United States Embassy in Greece (noting that Unova is based on New York, aka US and therefore the last name is paying tribute to that in terms of relating to the other characters and the other part of his name @ Greek).
Harmonia is apart of Greek mythology.
Concordia, also on that page, is one of the two people raising N. Harmonia's Roman counterpart is Concordia. Anthea is under the guidance of Hera, the Greek God.
So yeah, N is Greek, not German. :x