Is JKR having fun with names?

[Robert Jones]

No: HPFGUIDX 80218

JKR may have gotten some names from history or myth and used some 
just because she likes them (she has said that "Harry" is her 
favorite boy's name), but are some of the names slightly disguised 
versions of characteristics?  I'm thinking of the following:

Grammauld Place -- a "grim old" place

Ludo Bagman -- a "bag man" for money (gambling, etc.)

Cornelius Fudge -- he "fudges" everything. We can't tell if he is a 
DE or just looking out for his own best interests.  He ends 
up "performing clumsily, perfunctorily, or dishonestly" to quote the 
American College Dictionary.

Sirius Black -- he was a little too "serious."

Others might be Lucius ("Loser") Malfoy or Luna ("Looney")Lovegood.  
I hope none of the Weasleys end up on the list (unless you want to 
call Percy a weasel already).

Boris the Bewildered